Advise on adding a sump to stock tank

Now that,s some funny **** right there!LOL.I got the tank out and rinsed it real good with soap and water.It,s getting hot air from my woodstove blown in from a heater motor/fan hooked to a tube straight into the tank.All should be good tomorrow.I,ll post pics once I get it back.Here,s pics of the tank now and the sender.
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