I see what ur talking about now with the insulation, great idea I’m gonna do that! Maybe get some that’s black to help w heat retention as well, is that 1/2 inch thick? Would 1/4 work?. Just out of curiosity what thermometer and hydrometer u using? I see the heat gun as I have one as well but I have been hesitant to pull the trigger on thermo-hydro meters because they all pretty much look cheap. Could u post a link to the ones u have? Btw sweet tank! Looks os so familiar😎😎🤪 I can see him under that water dish🐍