swords3711

I bought a heater for my 35g tropical tank back in May. The problem is that I can't keep my temp down. I have it at its lowest setting and it is reading currently at 85F. This is too high for the fish I have in my tank. The problem is that it seems that when the outdoor temp decreases, my tank increases. How do I keep it down without having to get a new heater? If I were to get a new heater, it would only be a 30g heater and then I risk the temp being too low. I figured that I should buy big that way I wouldn't risk having it go out as fast. What should I do?

Coryd55

I have the same problem in one of my 30G except it is the hardware that came with it. I am going to buy a 30G heater soon. I would suggest a visitherm stealth heater. They are very reliable. I have 3 of them. You can get them at DFS cheapest from what I've looked up.

COBettaCouple

What wattage is the heater? What temp. does the tank water stay around with the heater off?

Dino

Also, what brand of heater did you buy?

swords3711

its a 200W topfin heater. i am going to Petsmart tonight should I just get a heater specified for 30g?
The temp was at 68F in the fall when my heater somehow shut off before I caught it.

Dino

I would go with another 200W.
I would also go with another brand than TopFin.
Visitherm or EboJager.

swords3711

or should I get a 30g I think 150W to prevent this overheating again?

Tavel

the problem is the topfin brand, not the wattage. topfin is just not good. The thermostats work alright for a while but will stick on more as they age. Eventually, they won't ever shut off and you'll boil some fish.

not to mention, after a while the paint starts to flake off and that CAN'T be good for the fish.

Like someone suggested, go with a better brand that has a calibrated thermostat. (I like marineland's visitherm because they're plastic and won't crack).

miker

Visitherm is my choice

Eagles Fan

well I go ta new one and it works just fine.