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Old 04-07-2010, 01:52 PM   #1
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GPH rate for 75 gallon tank

How many gph for powerheads should I have in a 75 gallon tank. I was hearing about 1500 gph for a 75 gallon tank. I purchased two Koralia powerheads that have a 850 gph. I did have to send them back because they wouldn't start back up after being shutdown. I should be getting my replacements next week.
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Old 04-08-2010, 11:17 AM   #2
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Salt or FW?
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Old 04-08-2010, 12:04 PM   #3
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Salt water

Salt water.
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Old 04-08-2010, 12:14 PM   #4
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It depends on what you have in the tank. For soft corals and LPS, the 2 Koralia 3's you have will be fine. If you want to keep SPS corals, you can easily double that.
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Old 04-08-2010, 04:27 PM   #5
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Its just a FOWLR tank

Its just a FOWLR tank
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Old 04-08-2010, 10:50 PM   #6
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i have 1 of theoes powerheads and after it has run for a week or two and i shut it off it has to be cleaned well b4 it will start back up
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Old 04-09-2010, 11:02 AM   #7
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Quote:
Originally Posted by strokinbyeu View Post
i have 1 of theoes powerheads and after it has run for a week or two and i shut it off it has to be cleaned well b4 it will start back up
I have 5 in my tank. I got them when they just came out a few years ago. I never had any start up problem with mine.
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