Heater/Filter size per gallon.

[learn2turn]

What's the rule of thumb for Watts/gallon for a heater?

This is assuming a typical community FW plant/fish aquarium. Winter indoor day temps will be 68F and the thermostat will set back to about 62F at night.

For filtration, is there a rule of thumb for gph for a tank of so many gallons? How many turnovers per hour is recommended?

 

[Rbishop]

Depending on your room temp and size of tank and whether it is covered or not...3-5 watts per gal. On large tanks, I split the total need between two heaters.

I hit 10 times tank volume for hourly turn over and always cut the advertised flow in half of any filter.

 

[Weezer]

Roughly the same here, What size tank are you referring to ?......

 

[mostlycichlids]

Depending on your room temp and size of tank and whether it is covered or not...3-5 watts per gal. On large tanks, I split the total need between two heaters.

I hit 10 times tank volume for hourly turn over and always cut the advertised flow in half of any filter.

:iagree:

 

[OldMan47]

I always figure about 5 watts per gallon then I try to find a heater about the right size. If you had a 29 gallon tank which actually holds about 26 gallons there are no 130 watt heaters so you choose either a 100 or a 150. The 5 watts per gallon is usually recommended for a 10 degree difference between room temperature and tank temperature so if you run your tanks hot or the room cold you will want to choose a heater with more capacity.