penance

This is a 200 watt heater that came in my 55 kit and I'm wondering if this will work well or will I need 2? If I need 2 will the 100 watt I have in my 29 tank be sufficient enough?

What is the best spot to place a heater?

Thanks - I just upgraded my tank and I'm just a bit nervous

agabr123

200 watts should be enough, but that depends if your house/apartment/etc has a lot of temperature fluctuations. i'd hook it up and see if it can keep the temperature steady before putting out money on a new one. the best place for it is diagonally in your tank with the bottom of the heater near the intake and the top of the heater pointed AWAY from the output. if you put it right below the output then only warm water will run over the temperature gauge and the heater won't turn on when it should

aquarist48

If you use the 100w that you have...place it opposite of your 200w (left and right sides in the back, near the bottom). Since you already have 2 that would give you one to fall back on should the other stop working. It will help prevent cold spots in the tank. Too, don't forget about the heat you may get from lights. During the summer I have to turn both of mine down some.

penance

Could you explain this part again? sorry but I'm not familiar with the terms output/intake ... at the moment I do have my heater diagonally in the upper right hand corner.

agabr123

sure basically there should be a tube on your filter that is in the water that pulls water into the filter. then the output is where water comes out of the filter. so you want the bottom of the heater near the bottom most part of the filter where the water is getting drawn in, and away from where the water is coming out of the filter