diff --git a/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart b/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart
index 7cd3782e1..1affff3b8 100644
--- a/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart
+++ b/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart
@@ -142,15 +142,14 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
     if ((coin == Coin.firo || coin == Coin.firoTestNet)) {
       if (ref.read(publicPrivateBalanceStateProvider.state).state ==
           "Private") {
-        availableBalance = wallet.info.cachedBalance.spendable;
+        availableBalance = wallet.info.cachedBalanceSecondary.spendable;
         // (manager.wallet as FiroWallet).availablePrivateBalance();
       } else {
-        availableBalance = wallet.info.cachedBalanceSecondary.spendable;
+        availableBalance = wallet.info.cachedBalance.spendable;
         // (manager.wallet as FiroWallet).availablePublicBalance();
       }
     } else {
       availableBalance = wallet.info.cachedBalance.spendable;
-      ;
     }
 
     final coinControlEnabled =
@@ -821,7 +820,7 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
         const SizedBox(
           height: 4,
         ),
-        if (coin == Coin.firo)
+        if (coin == Coin.firo || coin == Coin.firoTestNet)
           Text(
             "Send from",
             style: STextStyles.desktopTextExtraSmall(context).copyWith(
@@ -831,11 +830,11 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
             ),
             textAlign: TextAlign.left,
           ),
-        if (coin == Coin.firo)
+        if (coin == Coin.firo || coin == Coin.firoTestNet)
           const SizedBox(
             height: 10,
           ),
-        if (coin == Coin.firo)
+        if (coin == Coin.firo || coin == Coin.firoTestNet)
           DropdownButtonHideUnderline(
             child: DropdownButton2(
               isExpanded: true,
@@ -917,7 +916,7 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
               ),
             ),
           ),
-        if (coin == Coin.firo)
+        if (coin == Coin.firo || coin == Coin.firoTestNet)
           const SizedBox(
             height: 20,
           ),
@@ -1486,7 +1485,7 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
                                             .read(
                                                 publicPrivateBalanceStateProvider
                                                     .state)
-                                            .state !=
+                                            .state ==
                                         "Private") {
                                   throw UnimplementedError("FIXME");
                                   // TODO: [prio=high] firo fee fix
diff --git a/lib/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart b/lib/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart
index 7146454f1..cd7e590ec 100644
--- a/lib/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart
+++ b/lib/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart
@@ -625,9 +625,19 @@ mixin ElectrumXInterface on Bip39HDWallet {
     // TODO: use coinlib
 
     final txb = bitcoindart.TransactionBuilder(
-      network: bitcoindart.testnet,
+      network: bitcoindart.NetworkType(
+        messagePrefix: cryptoCurrency.networkParams.messagePrefix,
+        bech32: cryptoCurrency.networkParams.bech32Hrp,
+        bip32: bitcoindart.Bip32Type(
+          public: cryptoCurrency.networkParams.pubHDPrefix,
+          private: cryptoCurrency.networkParams.privHDPrefix,
+        ),
+        pubKeyHash: cryptoCurrency.networkParams.p2pkhPrefix,
+        scriptHash: cryptoCurrency.networkParams.p2shPrefix,
+        wif: cryptoCurrency.networkParams.wifPrefix,
+      ),
     );
-    txb.setVersion(1);
+    txb.setVersion(1); // TODO possibly override this for certain coins?
 
     // Add transaction inputs
     for (var i = 0; i < utxoSigningData.length; i++) {