diff --git a/src/gmc_gui.erl b/src/gmc_gui.erl
index f2a7b30..50bbf3e 100644
--- a/src/gmc_gui.erl
+++ b/src/gmc_gui.erl
@@ -717,8 +717,8 @@ spend2(#poa{id = ID, name = Name}, Nonce, State = #s{frame = Frame, j = J}) ->
 
     Style = [{style, ?wxSL_HORIZONTAL bor ?wxSL_LABELS}],
     Preset = 1_000, 
-    Min = 1,
-    Max = 1_000_000_000,
+    Min = hz:min_gas_price(),
+    Max = Min * 2,
     GasSl = wxSlider:new(Dialog, ?wxID_ANY, Preset, Min, Max, Style),
     GasSz = wxStaticBoxSizer:new(?wxVERTICAL, Dialog, [{label, J("Gas Price")}]),
     _ = wxStaticBoxSizer:add(GasSz, GasSl, zxw:flags(wide)),
@@ -748,7 +748,7 @@ spend2(#poa{id = ID, name = Name}, Nonce, State = #s{frame = Frame, j = J}) ->
                               amount       = wxTextCtrl:getValue(AmtTx),
                               gas_price    = wxSlider:getValue(GasSl),
                               gas          = 20000,
-                              ttl          = 175320,
+                              ttl          = 1,
                               nonce        = Nonce,
                               payload      = wxTextCtrl:getValue(DataTx)},
                 clean_spend(ID, TX);