diff --git a/src/main/java/io/bitsquare/gui/trade/createoffer/CreateOfferPM.java b/src/main/java/io/bitsquare/gui/trade/createoffer/CreateOfferPM.java
index bd85b699d9..a5f86e5eb0 100644
--- a/src/main/java/io/bitsquare/gui/trade/createoffer/CreateOfferPM.java
+++ b/src/main/java/io/bitsquare/gui/trade/createoffer/CreateOfferPM.java
@@ -155,10 +155,9 @@ class CreateOfferPM extends PresentationModel<CreateOfferModel> {
             model.minAmountAsCoin.set(orderBookFilter.getAmount());
         }
 
-        // TODO use Fiat in orderBookFilter
         // apply only if valid
-        if (orderBookFilter.getPrice() != 0 && isBtcInputValid(String.valueOf(orderBookFilter.getPrice())).isValid)
-            model.priceAsFiat.set(parseToFiatWith2Decimals(String.valueOf(orderBookFilter.getPrice())));
+        if (orderBookFilter.getPrice() != null && isBtcInputValid(orderBookFilter.getPrice().toPlainString()).isValid)
+            model.priceAsFiat.set(parseToFiatWith2Decimals(orderBookFilter.getPrice().toPlainString()));
     }
 
 
diff --git a/src/main/java/io/bitsquare/gui/trade/orderbook/OrderBookController.java b/src/main/java/io/bitsquare/gui/trade/orderbook/OrderBookController.java
index da6a3e8da4..ba4f7899f0 100644
--- a/src/main/java/io/bitsquare/gui/trade/orderbook/OrderBookController.java
+++ b/src/main/java/io/bitsquare/gui/trade/orderbook/OrderBookController.java
@@ -194,7 +194,7 @@ public class OrderBookController extends CachedViewController {
         });
 
         price.textProperty().addListener((observable, oldValue, newValue) -> {
-            orderBookFilter.setPrice(textInputToNumber(oldValue, newValue));
+            orderBookFilter.setPrice(BSFormatter.parseToFiat(newValue));
             updateVolume();
         });
 
diff --git a/src/main/java/io/bitsquare/gui/util/BSFormatter.java b/src/main/java/io/bitsquare/gui/util/BSFormatter.java
index bc56b22859..63041651b3 100644
--- a/src/main/java/io/bitsquare/gui/util/BSFormatter.java
+++ b/src/main/java/io/bitsquare/gui/util/BSFormatter.java
@@ -128,7 +128,7 @@ public class BSFormatter {
 
     public static Coin parseToCoin(String input) {
         try {
-            return coinFormat.parse(cleanedInput(input));
+            return coinFormat.parse(cleanInput(input));
         } catch (Throwable t) {
             log.warn("Exception at parseToBtc: " + t.toString());
             return Coin.ZERO;
@@ -145,7 +145,7 @@ public class BSFormatter {
      */
     public static Coin parseToCoinWith4Decimals(String input) {
         try {
-            return Coin.valueOf(new BigDecimal(parseToCoin(cleanedInput(input)).value).setScale(-scale - 1,
+            return Coin.valueOf(new BigDecimal(parseToCoin(cleanInput(input)).value).setScale(-scale - 1,
                     BigDecimal.ROUND_HALF_UP).setScale(scale + 1).toBigInteger().longValue());
         } catch (Throwable t) {
             log.warn("Exception at parseToCoinWith4Decimals: " + t.toString());
@@ -192,7 +192,7 @@ public class BSFormatter {
 
     public static Fiat parseToFiat(String input) {
         try {
-            return Fiat.parseFiat(currencyCode, cleanedInput(input));
+            return Fiat.parseFiat(currencyCode, cleanInput(input));
         } catch (Exception e) {
             return Fiat.valueOf(currencyCode, 0);
         }
@@ -208,7 +208,7 @@ public class BSFormatter {
      */
     public static Fiat parseToFiatWith2Decimals(String input) {
         try {
-            return parseToFiat(new BigDecimal(cleanedInput(input)).setScale(2, BigDecimal.ROUND_HALF_UP).toString());
+            return parseToFiat(new BigDecimal(cleanInput(input)).setScale(2, BigDecimal.ROUND_HALF_UP).toString());
         } catch (Throwable t) {
             log.warn("Exception at parseCoinTo4Decimals: " + t.toString());
             return Fiat.valueOf(currencyCode, 0);
@@ -219,6 +219,8 @@ public class BSFormatter {
     public static boolean hasFiatValidDecimals(String input) {
         return parseToFiat(input).equals(parseToFiatWith2Decimals(input));
     }
+
+
     ///////////////////////////////////////////////////////////////////////////////////////////
     // Other
     ///////////////////////////////////////////////////////////////////////////////////////////
@@ -228,6 +230,7 @@ public class BSFormatter {
      *              " are supported. Thousands separator is not supported.
      * @return Returns a double value. Any invalid value returns Double.NEGATIVE_INFINITY.
      */
+    @Deprecated //TODO use Fiat or Btc if possible
     public static double parseToDouble(String input) {
         try {
             checkNotNull(input);
@@ -247,22 +250,6 @@ public class BSFormatter {
         return result;
     }
 
-    public static String formatDouble(Fiat value) {
-        return formatDouble(value, 4);
-    }
-
-    public static String formatDouble(Fiat value, int fractionDigits) {
-        DecimalFormat decimalFormat = getDecimalFormat(fractionDigits);
-        return decimalFormat.format(value);
-    }
-
-    public static DecimalFormat getDecimalFormat(int fractionDigits) {
-        DecimalFormat decimalFormat = (DecimalFormat) DecimalFormat.getInstance(locale);
-        decimalFormat.setMinimumFractionDigits(fractionDigits);
-        decimalFormat.setMaximumFractionDigits(fractionDigits);
-        decimalFormat.setGroupingUsed(false);
-        return decimalFormat;
-    }
 
     public static String countryLocalesToString(List<Country> countries) {
         String result = "";
@@ -290,7 +277,6 @@ public class BSFormatter {
         return result;
     }
 
-
     public static String arbitrationMethodsToString(List<Arbitrator.METHOD> items) {
         String result = "";
         int i = 0;
@@ -325,25 +311,18 @@ public class BSFormatter {
     }
 
     public static String formatCollateralPercent(long collateral) {
-        return getDecimalFormat(1).format(collateral / 10) + " %";
+        DecimalFormat decimalFormat = (DecimalFormat) DecimalFormat.getInstance(locale);
+        decimalFormat.setMinimumFractionDigits(1);
+        decimalFormat.setMaximumFractionDigits(1);
+        decimalFormat.setGroupingUsed(false);
+        return decimalFormat.format(collateral / 10) + " %";
     }
 
     public static String formatVolumeWithMinVolume(Fiat volume, Fiat minVolume) {
         return formatFiat(volume) + " (" + formatFiat(minVolume) + ")";
     }
-/*
-    @Deprecated
-    public static String formatCoin(Coin coin) {
-        return coin != null ? coin.toPlainString() : "";
-    }
 
-
-    @Deprecated
-    public static String formatCoinWithCode(Coin coin) {
-        return coin != null ? coin.toFriendlyString() : "";
-    }*/
-
-    private static String cleanedInput(String input) {
+    private static String cleanInput(String input) {
         input = input.replace(",", ".");
         // don't use String.valueOf(Double.parseDouble(input)) as return value as it gives scientific 
         // notation (1.0E-6) which screw up coinFormat.parse
diff --git a/src/main/java/io/bitsquare/settings/Settings.java b/src/main/java/io/bitsquare/settings/Settings.java
index c97dd2cc70..2748b2620a 100644
--- a/src/main/java/io/bitsquare/settings/Settings.java
+++ b/src/main/java/io/bitsquare/settings/Settings.java
@@ -20,8 +20,6 @@ package io.bitsquare.settings;
 import io.bitsquare.arbitrator.Arbitrator;
 import io.bitsquare.locale.Country;
 
-import com.google.bitcoin.core.Coin;
-
 import java.io.Serializable;
 
 import java.util.ArrayList;
@@ -99,25 +97,14 @@ public class Settings implements Serializable {
         return acceptedArbitrators;
     }
 
-
     public List<Locale> getAcceptedLanguageLocales() {
         return acceptedLanguageLocales;
     }
 
-
     public List<Country> getAcceptedCountries() {
         return acceptedCountryLocales;
     }
 
-    //TODO
-    public Arbitrator getRandomArbitrator(Coin amount) {
-        List<Arbitrator> candidates = new ArrayList<>();
-        for (Arbitrator arbitrator : acceptedArbitrators) {
-            candidates.add(arbitrator);
-        }
-        return !candidates.isEmpty() ? candidates.get((int) (Math.random() * candidates.size())) : null;
-    }
-
     public void setCollateral(long collateral) {
         this.collateral = collateral;
     }
diff --git a/src/main/java/io/bitsquare/trade/Offer.java b/src/main/java/io/bitsquare/trade/Offer.java
index f0d94bfc0e..5daf9847c9 100644
--- a/src/main/java/io/bitsquare/trade/Offer.java
+++ b/src/main/java/io/bitsquare/trade/Offer.java
@@ -22,12 +22,11 @@ import io.bitsquare.bank.BankAccountType;
 import io.bitsquare.locale.Country;
 
 import com.google.bitcoin.core.Coin;
+import com.google.bitcoin.utils.ExchangeRate;
 import com.google.bitcoin.utils.Fiat;
 
 import java.io.Serializable;
 
-import java.math.BigDecimal;
-
 import java.security.PublicKey;
 
 import java.util.Currency;
@@ -60,7 +59,7 @@ public class Offer implements Serializable {
     private final List<Country> acceptedCountries;
     private final List<Locale> acceptedLanguageLocales;
     private final String bankAccountUID;
-    private final Arbitrator arbitrator;
+    private final List<Arbitrator> arbitrators;
     private String offerFeePaymentTxID;
 
 
@@ -78,7 +77,7 @@ public class Offer implements Serializable {
                  Currency currency,
                  Country bankAccountCountry,
                  String bankAccountUID,
-                 Arbitrator arbitrator,
+                 List<Arbitrator> arbitrators,
                  long collateral,
                  List<Country> acceptedCountries,
                  List<Locale> acceptedLanguageLocales) {
@@ -92,7 +91,7 @@ public class Offer implements Serializable {
         this.currency = currency;
         this.bankAccountCountry = bankAccountCountry;
         this.bankAccountUID = bankAccountUID;
-        this.arbitrator = arbitrator;
+        this.arbitrators = arbitrators;
         this.collateral = collateral;
         this.acceptedCountries = acceptedCountries;
 
@@ -156,10 +155,11 @@ public class Offer implements Serializable {
     }
 
     public Fiat getVolumeForCoin(Coin coin) {
-        BigDecimal amountBD = BigDecimal.valueOf(coin.longValue());
-        BigDecimal volumeBD = amountBD.multiply(BigDecimal.valueOf(price.longValue() / 10000));
-        long fiatAsDouble = volumeBD.divide(BigDecimal.valueOf(Coin.COIN.value)).longValue();
-        return Fiat.valueOf("EUR", fiatAsDouble);
+        if (price != null && coin != null && !coin.isZero() && !price.isZero()) {
+            return new ExchangeRate(price).coinToFiat(coin);
+        }
+        else
+            return null;
     }
 
     public Fiat getOfferVolume() {
@@ -178,8 +178,8 @@ public class Offer implements Serializable {
         this.offerFeePaymentTxID = offerFeePaymentTxID;
     }
 
-    public Arbitrator getArbitrator() {
-        return arbitrator;
+    public List<Arbitrator> getArbitrators() {
+        return arbitrators;
     }
 
     public long getCollateral() {
@@ -208,7 +208,7 @@ public class Offer implements Serializable {
                 ", acceptedLanguageLocales=" + acceptedLanguageLocales +
                 ", offerFeePaymentTxID='" + offerFeePaymentTxID + '\'' +
                 ", bankAccountUID='" + bankAccountUID + '\'' +
-                ", arbitrator=" + arbitrator +
+                ", arbitrator=" + arbitrators +
                 '}';
     }
 
diff --git a/src/main/java/io/bitsquare/trade/TradeManager.java b/src/main/java/io/bitsquare/trade/TradeManager.java
index 272916a4af..a559ad698e 100644
--- a/src/main/java/io/bitsquare/trade/TradeManager.java
+++ b/src/main/java/io/bitsquare/trade/TradeManager.java
@@ -177,7 +177,7 @@ public class TradeManager {
                 user.getCurrentBankAccount().getCurrency(),
                 user.getCurrentBankAccount().getCountry(),
                 user.getCurrentBankAccount().getUid(),
-                settings.getRandomArbitrator(amount),
+                settings.getAcceptedArbitrators(),
                 settings.getCollateral(),
                 settings.getAcceptedCountries(),
                 settings.getAcceptedLanguageLocales());
diff --git a/src/main/java/io/bitsquare/trade/orderbook/OrderBook.java b/src/main/java/io/bitsquare/trade/orderbook/OrderBook.java
index 0a93d1f3db..7a283a4977 100644
--- a/src/main/java/io/bitsquare/trade/orderbook/OrderBook.java
+++ b/src/main/java/io/bitsquare/trade/orderbook/OrderBook.java
@@ -25,6 +25,7 @@ import io.bitsquare.locale.CurrencyUtil;
 import io.bitsquare.msg.MessageFacade;
 import io.bitsquare.msg.listeners.OrderBookListener;
 import io.bitsquare.settings.Settings;
+import io.bitsquare.trade.Direction;
 import io.bitsquare.trade.Offer;
 import io.bitsquare.trade.TradeManager;
 import io.bitsquare.user.User;
@@ -135,20 +136,16 @@ public class OrderBook implements OrderBookListener {
 
             // Apply applyFilter only if there is a valid value set
             boolean priceResult = true;
-            if (orderBookFilter.getPrice() > 0) {
-                //TODO
-               /* if (offer.getDirection() == Direction.SELL) {
-                    priceResult = orderBookFilter.getPrice() //>= offer.getPrice();
-                }
-                else {
-                    priceResult = orderBookFilter.getPrice() <= offer.getPrice();
-                }*/
-
+            if (orderBookFilter.getPrice() != null) {
+                if (offer.getDirection() == Direction.SELL)
+                    priceResult = orderBookFilter.getPrice().compareTo(offer.getPrice()) >= 0;
+                else
+                    priceResult = orderBookFilter.getPrice().compareTo(offer.getPrice()) <= 0;
             }
 
             // The arbitrator defined in the offer must match one of the accepted arbitrators defined in the settings
             // (1 to n)
-            boolean arbitratorResult = arbitratorInList(offer.getArbitrator(), settings.getAcceptedArbitrators());
+            boolean arbitratorResult = arbitratorsInList(offer.getArbitrators(), settings.getAcceptedArbitrators());
 
             boolean result = currencyResult && countryResult && languageResult && amountResult && directionResult &&
                     priceResult && arbitratorResult;
@@ -250,15 +247,11 @@ public class OrderBook implements OrderBookListener {
         return false;
     }
 
-    private boolean arbitratorInList(Arbitrator arbitratorToMatch, List<Arbitrator> list) {
-        if (arbitratorToMatch != null) {
-            for (Arbitrator arbitrator : list) {
-                try {
-                    if (arbitrator.getId().equals(arbitratorToMatch.getId())) {
-                        return true;
-                    }
-                } catch (Exception e) {
-                    log.error(e.toString());
+    private boolean arbitratorsInList(List<Arbitrator> list1, List<Arbitrator> list2) {
+        for (Arbitrator arbitrator1 : list2) {
+            for (Arbitrator arbitrator2 : list1) {
+                if (arbitrator1.getId().equals(arbitrator2.getId())) {
+                    return true;
                 }
             }
         }
diff --git a/src/main/java/io/bitsquare/trade/orderbook/OrderBookFilter.java b/src/main/java/io/bitsquare/trade/orderbook/OrderBookFilter.java
index 92df7eff22..960d230679 100644
--- a/src/main/java/io/bitsquare/trade/orderbook/OrderBookFilter.java
+++ b/src/main/java/io/bitsquare/trade/orderbook/OrderBookFilter.java
@@ -20,6 +20,7 @@ package io.bitsquare.trade.orderbook;
 import io.bitsquare.trade.Direction;
 
 import com.google.bitcoin.core.Coin;
+import com.google.bitcoin.utils.Fiat;
 
 import javafx.beans.property.SimpleBooleanProperty;
 
@@ -27,7 +28,7 @@ public class OrderBookFilter {
     // TODO use ObjectProperty<Direction> instead
     private final SimpleBooleanProperty directionChangedProperty = new SimpleBooleanProperty();
 
-    private double price;
+    private Fiat price;
     private Coin amount;
     private Direction direction;
 
@@ -58,11 +59,11 @@ public class OrderBookFilter {
         directionChangedProperty.set(!directionChangedProperty.get());
     }
 
-    public double getPrice() {
+    public Fiat getPrice() {
         return price;
     }
 
-    public void setPrice(double price) {
+    public void setPrice(Fiat price) {
         this.price = price;
     }
 
diff --git a/src/main/java/io/bitsquare/trade/protocol/createoffer/tasks/VerifyOffer.java b/src/main/java/io/bitsquare/trade/protocol/createoffer/tasks/VerifyOffer.java
index b2a80cbe5d..68c7379103 100644
--- a/src/main/java/io/bitsquare/trade/protocol/createoffer/tasks/VerifyOffer.java
+++ b/src/main/java/io/bitsquare/trade/protocol/createoffer/tasks/VerifyOffer.java
@@ -38,7 +38,7 @@ public class VerifyOffer {
             checkNotNull(offer.getAcceptedCountries(), "AcceptedCountries is null");
             checkNotNull(offer.getAcceptedLanguageLocales(), "AcceptedLanguageLocales is null");
             checkNotNull(offer.getAmount(), "Amount is null");
-            checkNotNull(offer.getArbitrator(), "Arbitrator is null");
+            checkNotNull(offer.getArbitrators(), "Arbitrator is null");
             checkNotNull(offer.getBankAccountCountry(), "BankAccountCountry is null");
             checkNotNull(offer.getBankAccountId(), "BankAccountId is null");
             checkNotNull(offer.getCollateral(), "Collateral is null");
diff --git a/src/main/java/io/bitsquare/trade/protocol/trade/offerer/BuyerAcceptsOfferProtocol.java b/src/main/java/io/bitsquare/trade/protocol/trade/offerer/BuyerAcceptsOfferProtocol.java
index c74accd1be..2f0d302b08 100644
--- a/src/main/java/io/bitsquare/trade/protocol/trade/offerer/BuyerAcceptsOfferProtocol.java
+++ b/src/main/java/io/bitsquare/trade/protocol/trade/offerer/BuyerAcceptsOfferProtocol.java
@@ -156,7 +156,8 @@ public class BuyerAcceptsOfferProtocol {
         tradeId = trade.getId();
         offer = trade.getOffer();
 
-        arbitratorPubKey = offer.getArbitrator().getPubKeyAsHex();
+        //TODO use first for now
+        arbitratorPubKey = offer.getArbitrators().get(0).getPubKeyAsHex();
 
         bankAccount = user.getBankAccount(trade.getOffer().getBankAccountId());
         accountId = user.getAccountId();
diff --git a/src/main/java/io/bitsquare/trade/protocol/trade/taker/SellerTakesOfferProtocol.java b/src/main/java/io/bitsquare/trade/protocol/trade/taker/SellerTakesOfferProtocol.java
index 863d24f9e4..a76dda14aa 100644
--- a/src/main/java/io/bitsquare/trade/protocol/trade/taker/SellerTakesOfferProtocol.java
+++ b/src/main/java/io/bitsquare/trade/protocol/trade/taker/SellerTakesOfferProtocol.java
@@ -150,7 +150,8 @@ public class SellerTakesOfferProtocol {
         tradeId = trade.getId();
         tradeAmount = trade.getTradeAmount();
         collateral = trade.getCollateralAmount();
-        arbitratorPubKey = trade.getOffer().getArbitrator().getPubKeyAsHex();
+        //TODO use 1. for now
+        arbitratorPubKey = trade.getOffer().getArbitrators().get(0).getPubKeyAsHex();
 
         peersMessagePublicKey = offer.getMessagePublicKey();