How to maintain temp in long tanks?

[Stephen8169301]

How do you maintain a steady temp in a longer tank? I can’t seem to keep my tank at 1 steady temp it’ll be 78 then it’ll be 76 I have the right size wattage for it I just want to have a clear head and my fish and coral are not dealing with swings

tank 33 long (4ft)
Temp watt 100

Sits in the display

 

[Reeflix]

i have a 75g and the heat is fine (same length as you tank if you didnt know) maybe move the heater under the filter outtake so it spreads more evenly

 

[JTP424]

Simple solution would be two heaters. Set one a few degrees under the other, set on different ends. Then it'll help with the water temp and provide a backup solution.
I did a similar process with a tank that had a very small back chamber, ran two smaller than recommended and they kept it up to temp.

 

[dedragon]

2x heaters and a temperature controller like the inkbird.

 

[Nate Chalk]

I have 2 heaters in my sump and a ton of flow.

That will keep things stable and homogeneous

 

[Stephen8169301]

i have a 75g and the heat is fine (same length as you tank if you didnt know) maybe move the heater under the filter outtake so it spreads more evenly

This is where mine sits and I did not know lol so many different sizes and styles of many tanks

 

[Stephen8169301]

I have 2 heaters in my sump and a ton of flow.

That will keep things stable and homogeneous

Yeah I think this is what route I may have to try but not flow my fish stink at swimming

 

[Stephen8169301]

2x heaters and a temperature controller like the inkbird.

I’m gonna look into that

 

[Stephen8169301]

Simple solution would be two heaters. Set one a few degrees under the other, set on different ends. Then it'll help with the water temp and provide a backup solution.
I did a similar process with a tank that had a very small back chamber, ran two smaller than recommended and they kept it up to temp.

So one at the top of water and one at the bottom on other side of tank?

 

[Nate Chalk]

Yeah I think this is what route I may have to try but not flow my fish stink at swimming

Stink at swimming?

What do you mean.

I'm guessing clowns? They will surprise you ...

 

[JTP424]

So one at the top of water and one at the bottom on other side of tank?

One at each end would probably work best. IMO
Others can provide feedback

 

[Stephen8169301]

Stink at swimming?

What do you mean.

I'm guessing clowns? They will surprise you ...

No clown unfortunately lost him this past week banggai which stays in one spot clown goby and firefish

 

[Stephen8169301]

One at each end would probably work best. IMO
Others can provide feedback

Yeah I think I’m gonna look into doing that and definitely will into more with a controller I can maybe monitor on my phone

 

[snackpack]

What is your flow and filtration setup in the tank? Sounds much more like a stagnant water problem to me than it does a heater problem

 

[Stephen8169301]

I have the coralife AIO protein skimmer and filtration with two power heads one rated at 800ish and the other like 1000ish maybe if I put the stronger one closer to the heater side and the weaker one on further side?

 

[snackpack]

Also, how are you measuring temperatures?

 

[edd59]

How do you maintain a steady temp in a longer tank? I can’t seem to keep my tank at 1 steady temp it’ll be 78 then it’ll be 76 I have the right size wattage for it I just want to have a clear head and my fish and coral are not dealing with swings

tank 33 long (4ft)
Temp watt 100

Sits in the display

if that is a100 watt heater, it is too small.
as long as there is flow it doesnt matter where you put the heater

 

[Stephen8169301]

Also, how are you measuring temperatures?

Probe in tank a glass measuring one that’s in tank also I stick a temp reader in tank once a day and a surface temp reader I’m paranoid

 

[Stephen8169301]

if that is a100 watt heater, it is too small

Yeah it is says it good for 40+ gallons but obviously not sure for longer tanks

 

[snackpack]

Probe in tank a glass measuring one that’s in tank also I stick a temp reader in tank once a day and a surface temp reader I’m paranoid

I just want to make sure that you've tried using the same measuring instrument on both sides of the tank - most thermometers are wildly inaccurate so you need to take calibration issues out of the equation