Heater for a 125

[12 Volt Man]

two heaters is better though.

look at it this way, if you are on vacation and you have one heater and it fails, you may loose fish in winter.

with two, you have the back up heater

if one gets stuck ON, the other one will not come on and your fish will not cook.

if one gets stuck off, the other one will come on and save your fish.

if they both get stuck on, its still probably not enough wattage to cook your fish.

so having two covers all bases...

 

[Fishdude401]

Always better to have two, two filters, two heaters, two more tanks hahaha. But if one of the heaters fails ( common occurrence during winter ) than you will wish you had that extra heater. another thing, never get glass heaters, they break very easily and are a waste of time and money. I run a solo 200WATT on my 55g and it's fine, but i might buy a backup glass/cheap heater in case my Stealth heater dies on me.

 

[12 Volt Man]

never get glass heaters,they break very easily and are a waste of time and money.

I disagree. an Ebo jager with a heater guard is excellent

 

[buddha1200]

i run 2-250 watt stealths on my 125 and my temperature never budges even in winter and my tanks are in a basement

 

[Toby_H]

I don't agree with the logic of using two heaters...

If your heter is strong enough to cook your fish, you are using to strong of a heater...

If it takes two heaters to keep the temperature consistent throughout your aquarium, you don't have enough circulation...

 

[Toxic Fish 9999]

Well i idk i might go to the lfs see what they have

 

[Toby_H]

Well i idk i might go to the lfs see what they have

It's best to know what you need when you go... If you take advice from the LFS guy he's sure to have you overspend on a bigger heater than you actually need...

 

[12 Volt Man]

I don't agree with the logic of using two heaters...

If your heter is strong enough to cook your fish, you are using to strong of a heater...

If it takes two heaters to keep the temperature consistent throughout your aquarium, you don't have enough circulation...

but what about people with large tanks?

I like Ebo Jagers and they don't make a model large enough to heat my tank properly by itself - at least in winter time in my basement.

so I use twin 250W.

sometimes, you have to use two. some tanks are too big to use a single heater, especially if you want to stick with a brand you trust.

 

[Toby_H]

but what about people with large tanks?

I like Ebo Jagers and they don't make a model large enough to heat my tank properly by itself - at least in winter time in my basement.

so I use twin 250W.

sometimes, you have to use two. some tanks are too big to use a single heater, especially if you want to stick with a brand you trust.

Tanks that are so large they cannot be served by a single large heater of your desired brand (typically 300W) is naturally a time when two (or more) heaters are necessary... no arguement there...

Although personally, if I had a tank in a colder area of the house I would use insulation on the back/bottom/sides and make sure the top is sealed well. With this in place it is likely that I could safely reduce my heater needs back to the 2W per gal range.

But even then, you are quite correct that there are some monster fish tanks out there that, even if insulated/sealed, would not take care of by a single heater...


But the theory is not typically stated as: On tanks to big to be serviced by one heater, two heaters is best... The common saying is: using two heaters is best...

And to that theory, I stick to my argument of:

I don't agree with the logic of using two heaters...

If your heter is strong enough to cook your fish, you are using to strong of a heater...

If it takes two heaters to keep the temperature consistent throughout your aquarium, you don't have enough circulation...

Although I have not put this technique into practice yet personally... I've heard from hobbyists whose experience I value and trust...

Before adding fish to a new tank, turn the heater all the way up... if the heater is capable of heating the tank into a deadly range, the heater is to large...

It seems simple enough...

Naturally there will be times when additional considerations should be made... such as when the tank is kept in a colder region of the house. Then this 'test' shuold be done at the coldest temperature the tank experiences.

 

[12 Volt Man]

Before adding fish to a new tank, turn the heater all the way up... if the heater is capable of heating the tank into a deadly range, the heater is to large...

hence the argument for using two smaller heaters..