What size heater for 180 gallon tank?

Tomoko Schum

Valuable Member
Review score
+0 /0 /-0
View Badges
Joined
Aug 26, 2006
Messages
2,002
Reaction score
303
Review score
+0 /0 /-0
Location
Madison, AL
Hi y'all,

What size heaters are you using?

I am finding out that a 300W heater is not enough for my 180 after switching the metal halide to LED's. After the switch, I was using two Eheim heaters (150W + 75W) until one of them broke. I was lucky that it was the 75W heater that broke (and stuck). The tank temp did not go up much at all (only up to 81 or so). The new 300W titanium heater is quite underpowered. It's on all the time yet the temp is only at 77 during the day. It drops to 75 at night. I am considering adding another heater strip, but I am not sure what wattage I need.
 
BRS

TruRacr314x

Well-Known Member
Review score
+0 /0 /-0
View Badges
Joined
May 23, 2013
Messages
834
Reaction score
10
Review score
+0 /0 /-0
Location
Brookville, IN
What temp is the room? My tanks are in the basement where it is 65 pretty much year round. I have two 300w and one 200w....Jager heaters. Last winter when it was really cold...at times all three would be on.
 
OP
Tomoko Schum

Tomoko Schum

Valuable Member
Review score
+0 /0 /-0
View Badges
Joined
Aug 26, 2006
Messages
2,002
Reaction score
303
Review score
+0 /0 /-0
Location
Madison, AL
My daytime temp is set to 68. I am not sure if it is programmed to drop further late at night. I have to look at the manual to find out how to review the temperature settings. I hate electronic controllers. The programming is not standardized even within the same brand. Every time I want to change the settings on my timers, I have to review their manuals because each one has slightly different (and as a result very confusing) way of changing the settings.
 
Orphek OR3 reef aquarium LED lighting

DavidinGA

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 19, 2013
Messages
84
Reaction score
14
Review score
+0 /0 /-0
I have a 210gal and run one 300w and one 125w and they have no problem maintaining a temp of 80f all winter long (I'm under leds too). House temp stays around 71f through the winter.
 
Click to watch best scape method in 5 easy steps!

hllywd

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Jul 6, 2011
Messages
56
Reaction score
9
Review score
+0 /0 /-0
Location
NW oHIo
210 with a total of 260 gallons or so in the system. I have 2x 250W Aqueon Pros. They're just new since one of my old heaters just went bad. I have 3x Kessil A360s and 2x 80W T5s. Temp in the house is set to 66 at night and during the day. My Apex shows the tank temp rock solid at 79.
 

gar_moss

New Member
Review score
+0 /0 /-0
View Badges
Joined
Feb 17, 2014
Messages
4
Reaction score
0
Review score
+0 /0 /-0
Location
United States
I would go with 2 of the 250w Aqueon Pro heaters. I'm running various sizes of these heaters in all my tanks and they are rock solid as long as you don't overwhelm them. They are long, so hopefully your sump is long or tall enough.
 
Biota Marine Life
Top