is placing heaters in my sump taking away from efficiency?

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perdeep007

Gambusia
MFK Member
Nov 22, 2009
168
8
18
new jersey
Currently have 3 heaters in my tank. I believe 2 150w and a 500w and my tank temp is 85. i have a flowerhorn that prefers warm water. Should i put the heaters in the tank instead of my sump?
 
Wow that's warm. My heaters are in my sump and so is the controller probe. I read a thread on here a while back that warned against putting the sensor in the tank and the heaters in the sump because if you lose circulation the controller will think it is cold and will cook your sump. I think he said it was in the nineties. If he hadn't caught it he could have potentially killed his stock with overheated water
 
Flowerhorns and Oscars, Red Devils and a host of other fish like to attack heaters...and break them. I think a heater placed as close to the return pumpnas possible is the safest and most efficient placement, with the temp probe in the sump, away from the heater.
BTW...what kind of volume are you heating antway?
 
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Agree with bold. Fish attacking heaters aside, If you have a controller with temperature probe, I'd keep that together with the heater. That is, in the sump OR in the tank. That way, if the return pump ever stops, the controller would and heater would still function properly together.

Personally, I'd stick it in the sump as suggested - ideally keeping the temp probe furthest away possible from the heater.
 
Wow that's warm. My heaters are in my sump and so is the controller probe. I read a thread on here a while back that warned against putting the sensor in the tank and the heaters in the sump because if you lose circulation the controller will think it is cold and will cook your sump. I think he said it was in the nineties. If he hadn't caught it he could have potentially killed his stock with overheated water
I understand the logic behind that and all, but if your circulation went, wouldn't it be harmless in the sump? unless you keep stock in there of course. Either way your tank is getting cold if your pumps die haha.
 
interesting... ideally 84-85 is supposedly good for flowerhorns. i have a 125 gallon tank and a 30 gallon sump... currently tank at 85 with the general weather slightly warm
 
. Either way your tank is getting cold if your pumps die haha.
I just had this happen, I have my heater in my sump, went away for a week and came home to my tank down to safety on overflow, and sump empty, don't know what happened as that is about 20 gallons of water. Anyways my tank was 56 degrees, and thankfully it's a common snapping turtle so he was fine
 
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