Bud8Fan, didn't one of your 500w heaters go out on your big tank and the temp stayed the same for 500g of water?
I had a 300w visitherm deluxe heater on my 75 gallon tank, but when I accidentially crushed it with a rock (dont ask... it fell and i didnt see it) I whipped out a 50 watt heater until I could get a new one... Well, that kept my temp in that tank 83* for about 2 months (just replaced ti recently... like a few weeks ago..)... Now you might be saying "50 watts in 90g (sump included) heating it to 83* F in the middle of winter" and I would say "A texas winter, where it gets down to 55* at the lowest during the day... And those are the cold days!"...
Either way, I think that people way overuse heaters... Though it is nice having the extra margin for error when doing waterchanges. Then, if you fill with too cold water it will bounce back faster
Heck, 200 watts kept a 120 gallon turtle pond 72* when it dropped to 30* at night...
I had a 300w visitherm deluxe heater on my 75 gallon tank, but when I accidentially crushed it with a rock (dont ask... it fell and i didnt see it) I whipped out a 50 watt heater until I could get a new one... Well, that kept my temp in that tank 83* for about 2 months (just replaced ti recently... like a few weeks ago..)... Now you might be saying "50 watts in 90g (sump included) heating it to 83* F in the middle of winter" and I would say "A texas winter, where it gets down to 55* at the lowest during the day... And those are the cold days!"...
Either way, I think that people way overuse heaters... Though it is nice having the extra margin for error when doing waterchanges. Then, if you fill with too cold water it will bounce back faster
Heck, 200 watts kept a 120 gallon turtle pond 72* when it dropped to 30* at night...
