Heater Failed ?

[Millns84]

Made it to LFS at 17:58 and picked up a new heater.

I terms of a second one, what do I need? For a 180l tank I have been running a 200W heater. If I had two would I need 2x100W or should I go for 150W?

A single 200w or two 100w.

 

[Edvet]

With 2 100's you'll be safe if one "hangs" and keeps heating

 

[tam]

When using a smaller heater there is one concern, if its a larger tank 4ft++ the temp at each end will be different.

Would it be that much difference with the water circulation - I haven't tried it? I'm not sure it would bother the fish to have a slight variation. I've always thought it's a bit weird how stable we keep the temperature. You can ramp lights up and down and change intensity, but heaters aim is a fixed temperature for the whole tank 24/7 - not cooler in deeper water, in shade or overnight.

 

[Edvet]

In some studies in the amazon daily water temperatures can vary 3-4 degrees.

 

[Keith GH]

Edvet
In Australia the water temperature can vary greatly over the seasons one lake is an excellent trout fishing location it freezes in the winter and in the hot summer months the water is rather warm.

Keith

 

[Edvet]

Yeah i was talking daily variation

 

[Jack Reilly]

My hydor in-line heater failed. Luckily I buy crap I don’t need all the time and had several eheim jaegers sitting in their box in the cupboard.