diff --git a/src/Zenith.hs b/src/Zenith.hs
index d597ac2..4ad8bb7 100644
--- a/src/Zenith.hs
+++ b/src/Zenith.hs
@@ -45,14 +45,12 @@ import Text.Regex.Base
 import Text.Regex.Posix
 
 -- | A type to model Zcash RPC calls
-data RpcCall =
-  RpcCall
-    { jsonrpc :: T.Text
-    , id :: T.Text
-    , method :: T.Text
-    , params :: [Value]
-    }
-  deriving (Show, Generic, ToJSON, FromJSON)
+data RpcCall = RpcCall
+  { jsonrpc :: T.Text
+  , id :: T.Text
+  , method :: T.Text
+  , params :: [Value]
+  } deriving (Show, Generic, ToJSON, FromJSON)
 
 -- | Type for modelling the different address sources for Zcash 5.0.0
 data AddressSource
@@ -91,14 +89,12 @@ instance FromJSON ZcashPool where
       "orchard" -> return Orchard
       _ -> fail "Not a known Zcash pool"
 
-data ZcashAddress =
-  ZcashAddress
-    { source :: AddressSource
-    , pool :: [ZcashPool]
-    , account :: Maybe Integer
-    , addy :: T.Text
-    }
-  deriving (Eq)
+data ZcashAddress = ZcashAddress
+  { source :: AddressSource
+  , pool :: [ZcashPool]
+  , account :: Maybe Integer
+  , addy :: T.Text
+  } deriving (Eq)
 
 instance Show ZcashAddress where
   show (ZcashAddress s p i a) =
@@ -106,13 +102,11 @@ instance Show ZcashAddress where
     "..." ++ T.unpack (T.takeEnd 8 a) ++ " Pools: " ++ show p
 
 -- | A type to model the response of the Zcash RPC
-data RpcResponse r =
-  RpcResponse
-    { err :: Maybe T.Text
-    , respId :: T.Text
-    , result :: r
-    }
-  deriving (Show, Generic, ToJSON)
+data RpcResponse r = RpcResponse
+  { err :: Maybe T.Text
+  , respId :: T.Text
+  , result :: r
+  } deriving (Show, Generic, ToJSON)
 
 instance (FromJSON r) => FromJSON (RpcResponse r) where
   parseJSON (Object obj) = do
@@ -136,14 +130,12 @@ instance FromJSON NodeVersion where
       pure $ NodeVersion v
 
 -- | A type to model an address group
-data AddressGroup =
-  AddressGroup
-    { agsource :: AddressSource
-    , agtransparent :: [ZcashAddress]
-    , agsapling :: [ZcashAddress]
-    , agunified :: [ZcashAddress]
-    }
-  deriving (Show, Generic)
+data AddressGroup = AddressGroup
+  { agsource :: AddressSource
+  , agtransparent :: [ZcashAddress]
+  , agsapling :: [ZcashAddress]
+  , agunified :: [ZcashAddress]
+  } deriving (Show, Generic)
 
 instance FromJSON AddressGroup where
   parseJSON =
@@ -195,18 +187,16 @@ displayZec s
   | otherwise = show (fromIntegral s / 100000000) ++ " ZEC "
 
 -- | A type to model a Zcash transaction
-data ZcashTx =
-  ZcashTx
-    { ztxid :: T.Text
-    , zamount :: Double
-    , zamountZat :: Integer
-    , zblockheight :: Integer
-    , zblocktime :: Integer
-    , zchange :: Bool
-    , zconfirmations :: Integer
-    , zmemo :: T.Text
-    }
-  deriving (Show, Generic)
+data ZcashTx = ZcashTx
+  { ztxid :: T.Text
+  , zamount :: Double
+  , zamountZat :: Integer
+  , zblockheight :: Integer
+  , zblocktime :: Integer
+  , zchange :: Bool
+  , zconfirmations :: Integer
+  , zmemo :: T.Text
+  } deriving (Show, Generic)
 
 instance FromJSON ZcashTx where
   parseJSON =
@@ -246,13 +236,11 @@ instance ToJSON ZcashTx where
       ]
 
 -- | Type for the UA balance
-data UABalance =
-  UABalance
-    { uatransparent :: Integer
-    , uasapling :: Integer
-    , uaorchard :: Integer
-    }
-  deriving (Eq)
+data UABalance = UABalance
+  { uatransparent :: Integer
+  , uasapling :: Integer
+  , uaorchard :: Integer
+  } deriving (Eq)
 
 instance Show UABalance where
   show (UABalance t s o) =
@@ -280,13 +268,11 @@ instance FromJSON UABalance where
       pure $ UABalance vT vS vO
 
 -- | Type for Operation Result
-data OpResult =
-  OpResult
-    { opsuccess :: T.Text
-    , opmessage :: Maybe T.Text
-    , optxid :: Maybe T.Text
-    }
-  deriving (Show, Eq)
+data OpResult = OpResult
+  { opsuccess :: T.Text
+  , opmessage :: Maybe T.Text
+  , optxid :: Maybe T.Text
+  } deriving (Show, Eq)
 
 instance FromJSON OpResult where
   parseJSON =
@@ -439,7 +425,7 @@ sendTx user pwd fromAddy toAddy amount memo = do
                         (V.fromList
                            [object ["address" .= toAddy, "amount" .= amount]])
                     , Data.Aeson.Number $ Scientific.scientific 1 1
-                    , Data.Aeson.Number $ Scientific.scientific 1 (-5)
+                    , Data.Aeson.Null
                     , Data.Aeson.String privacyPolicy
                     ]
                   Just memo' ->
@@ -453,7 +439,7 @@ sendTx user pwd fromAddy toAddy amount memo = do
                                ]
                            ])
                     , Data.Aeson.Number $ Scientific.scientific 1 1
-                    , Data.Aeson.Number $ Scientific.scientific 1 (-5)
+                    , Data.Aeson.Null
                     , Data.Aeson.String privacyPolicy
                     ]
           response <- makeZcashCall user pwd "z_sendmany" pd