temperature fluctuation

jeffb329 · 07/17/2006, 03:26 PM

I have a 210 gallon tank mostly sps. 4 400 w halides and 6 6' vho's. my water temp is 76 in the morningand almost 82 in the afternoon. i am runing a 1/2 hp chiller. My acros seem to be doing fine but fish not so good. Should i run a heater as well and how much temp change is ok?

Thanks
Jeff

Billybeau1 · 07/17/2006, 03:34 PM

6 deg in 24 hrs is too much swing IMO. If the chiller can only maintain 82 during the day, I'd set the heater to 79 at night.

mraafat · 07/17/2006, 03:35 PM

A six degree change is a little, and I would recommend getting a temperature controller of some sort. If the lowest temperature your chiller will pull down to is 82, then you should set the heater to keep water at about 80 overnight. 4x 400 is a lot!!! If you run an ac at home it will help your tank remain cooler too.

mraafat · 07/17/2006, 03:36 PM

i meant to say a six degree chance is a little too much......I think it is too high of a change.

jeffb329 · 07/17/2006, 03:40 PM

Thanks and thats with my thermostat set @68 in the house my electric bill was almost 5 bills last month! DOH!

07/17/2006, 03:26 PM	#1
jeffb329 Registered Member Join Date: Apr 2006 Location: Louisiana Posts: 11	temperature fluctuation I have a 210 gallon tank mostly sps. 4 400 w halides and 6 6' vho's. my water temp is 76 in the morningand almost 82 in the afternoon. i am runing a 1/2 hp chiller. My acros seem to be doing fine but fish not so good. Should i run a heater as well and how much temp change is ok? Thanks Jeff

07/17/2006, 03:34 PM	#2
Billybeau1 Registered Member Join Date: Jul 2005 Location: Dyer, Indiana Posts: 12,010	6 deg in 24 hrs is too much swing IMO. If the chiller can only maintain 82 during the day, I'd set the heater to 79 at night.

07/17/2006, 03:35 PM	#3
mraafat Registered Member Join Date: Nov 2005 Location: California Posts: 228	A six degree change is a little, and I would recommend getting a temperature controller of some sort. If the lowest temperature your chiller will pull down to is 82, then you should set the heater to keep water at about 80 overnight. 4x 400 is a lot!!! If you run an ac at home it will help your tank remain cooler too.

07/17/2006, 03:36 PM	#4
mraafat Registered Member Join Date: Nov 2005 Location: California Posts: 228	i meant to say a six degree chance is a little too much......I think it is too high of a change.

07/17/2006, 03:40 PM	#5
jeffb329 Registered Member Join Date: Apr 2006 Location: Louisiana Posts: 11	Thanks and thats with my thermostat set @68 in the house my electric bill was almost 5 bills last month! DOH!