diff --git a/app/components/Dashboard/SimpleDepositWithdraw.jsx b/app/components/Dashboard/SimpleDepositWithdraw.jsx
index a9d0838393..aad36e5da8 100644
--- a/app/components/Dashboard/SimpleDepositWithdraw.jsx
+++ b/app/components/Dashboard/SimpleDepositWithdraw.jsx
@@ -18,11 +18,12 @@ import { checkFeeStatusAsync, checkBalance } from "common/trxHelper";
 import AssetName from "../Utility/AssetName";
 import { ChainStore } from "bitsharesjs/es";
 import { debounce } from "lodash";
+import {DecimalChecker} from "../Exchange/ExchangeInput";
 
 // import DepositFiatOpenLedger from "components/DepositWithdraw/openledger/DepositFiatOpenLedger";
 // import WithdrawFiatOpenLedger from "components/DepositWithdraw/openledger/WithdrawFiatOpenLedger";
 
-class DepositWithdrawContent extends React.Component {
+class DepositWithdrawContent extends DecimalChecker {
 
     static propTypes = {
         sender: ChainTypes.ChainAccount.isRequired,
@@ -315,6 +316,7 @@ class DepositWithdrawContent extends React.Component {
     }
 
     _renderWithdraw() {
+        const {amountError} = this.state;
         const {name: assetName} = utils.replaceName(this.props.asset.get("symbol"), !!this.props.asset.get("bitasset"));
         let tabIndex = 1;
         const {supportsMemos} = this.props;
@@ -346,20 +348,28 @@ class DepositWithdrawContent extends React.Component {
                 <div className="SimpleTrade__withdraw-row">
                         <label className="left-label">{counterpart.translate("modal.withdraw.amount")}</label>
                         <div className="inline-label input-wrapper">
-                            <input tabIndex={tabIndex++} type="text" value={this.state.withdrawValue} onChange={this._onInputAmount.bind(this)} />
+                            <input
+                                tabIndex={tabIndex++}
+                                type="number"
+                                min="0"
+                                onKeyPress={this.onKeyPress.bind(this)}
+                                value={this.state.withdrawValue}
+                                onChange={this._onInputAmount.bind(this)}
+                            />
                             <div className="form-label select floating-dropdown">
                                 <div className="dropdown-wrapper inactive">
                                     <div>{assetName}</div>
                                 </div>
                             </div>
                         </div>
+                    {amountError ? <p className="has-error no-margin" style={{paddingTop: 10}}><Translate content={amountError} /></p>:null}
                     {this.state.balanceError ? <p className="has-error no-margin" style={{paddingTop: 10}}><Translate content="transfer.errors.insufficient" /></p>:null}
                 </div>
 
                 <div className="SimpleTrade__withdraw-row">
                     <label className="left-label">{counterpart.translate("transfer.fee")}</label>
                         <div className="inline-label input-wrapper">
-                            <input type="text" value={currentFee.getAmount({real: true})} />
+                            <input type="text" disabled value={currentFee.getAmount({real: true})} />
 
                             <div className="form-label select floating-dropdown">
                                 <div className="dropdown-wrapper inactive">
diff --git a/app/components/Exchange/ExchangeInput.jsx b/app/components/Exchange/ExchangeInput.jsx
index 3e75c708b4..49834cc7ff 100644
--- a/app/components/Exchange/ExchangeInput.jsx
+++ b/app/components/Exchange/ExchangeInput.jsx
@@ -1,21 +1,23 @@
 import React from "react";
 
-class ExchangeInput extends React.Component {
-    constructor(){
-        super();
-    }
-
+export class DecimalChecker extends React.Component {
     onKeyPress(e){
         var nextValue = e.target.value + e.key;
         var decimal = nextValue.match(/\./g);
         var decimalCount = decimal ? decimal.length : 0;
-        if(e.key === '.' && decimalCount > 1) e.preventDefault();
+        if(e.key === "." && decimalCount > 1) e.preventDefault();
 
         if(this.props.onKeyPress) this.props.onKeyPress(e);
     }
+}
+
+class ExchangeInput extends DecimalChecker {
+    constructor(){
+        super();
+    }
 
     render(){
-        return <input type="number" {...this.props} onKeyPress={this.onKeyPress.bind(this)} />
+        return <input type="number" {...this.props} onKeyPress={this.onKeyPress.bind(this)} />;
     }
 }
 
diff --git a/app/lib/common/MarketClasses.js b/app/lib/common/MarketClasses.js
index 2fd2ddc6aa..7043e0016c 100644
--- a/app/lib/common/MarketClasses.js
+++ b/app/lib/common/MarketClasses.js
@@ -58,8 +58,7 @@ class Asset {
         if (typeof sats !== "number" && typeof real !== "number") {
             throw new Error("Invalid arguments for setAmount");
         }
-        if (real && typeof real !== "undefined") {
-            if (typeof real !== "number" || isNaN(real)) throw new Error("Invalid argument 'real' for setAmount");
+        if (typeof real === "number") {
             this.amount = this.toSats(real);
             this._clearCache();
         } else if(typeof sats === "number") {