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Old 04-20-2019, 02:14 PM   #1
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aquarium heater

I can't seem to find an adequate heater for an aquarium of 100 gallons. Any suggestions?
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Old 04-20-2019, 06:57 PM   #2
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When I upgraded from my 55 to the 120-ish, I got two of cobalts higher end units. I'll look into which ones I exactly got when I get home from work.
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Old 04-20-2019, 08:08 PM   #3
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Hello, maybe you could get a couple of sm heaters(3◊200w or 2◊300w) this way you could distribute heat better around tank. I use 3◊150 for 55gal. 1back center & 2front corners. Hope this helps!
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Old 04-20-2019, 08:12 PM   #4
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Originally Posted by jbeatts View Post
I can't seem to find an adequate heater for an aquarium of 100 gallons. Any suggestions?

You'll probably have to get 2-3 heaters for a cumulative effect. The upside is that the failure of one won't be immediately disastrous to your tank.
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Old 04-21-2019, 05:26 AM   #5
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Two 250 watt heaters will suffice
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Old 04-21-2019, 05:52 AM   #6
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Sorry it took so long to reply, but these are the heaters I'm a fan of.
https://www.chewy.com/cobalt-aquatic...SABEgJHVfD_BwE
I also know that bulk reef supply did a video comparing heaters that might be of assistance for you to look into as well. I know it helped me make my decision.
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Old 04-22-2019, 01:27 AM   #7
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Hello, maybe you could get a couple of sm heaters(3◊200w or 2◊300w) this way you could distribute heat better around tank. I use 3◊150 for 55gal. 1back center & 2front corners. Hope this helps!
I wanted to put the heater(s) in the sump. Do you think it would be better in the tank? I really want to keep the water temperature consistent.
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Old 04-22-2019, 02:15 AM   #8
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Keeping heaters in sumps is very common and won't cause any variation in temp.
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Old 04-22-2019, 11:03 AM   #9
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Tank Heaters

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I can't seem to find an adequate heater for an aquarium of 100 gallons. Any suggestions?
Hello jb...

I've used Aqueon for quite a few years. I use 300W heaters in my larger tanks. The important thing is to use equipment that will distribute the heat evenly. I've found dual sponge filters do a good job of moving the water so the heat is distributed evenly around the tank.

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Old 04-22-2019, 02:16 PM   #10
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I would also look into a heater controller. These devices will monitor the temperature and will shut off the heater(s) in the event they malfunction (for instance, get ďstuckĒ in the ON position).
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