Tropical Fish Keeping - Aquarium fish care and resources

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walkytalky 10-28-2008 05:50 PM

powerheads for a 30 gal sw
I've read most of the threads but everyone seems to have a bigger tank than me.
So I was wondering if a nano koralia and a mj 900 plus a skimmer (sea clone) and a AC 300 be enough current in my tank. I don't have my AC300 running all the time. I don't see any dead spots. But I do see a fine film on the top of the water in one corner by the nano koralia.:roll:

Kellsindell 10-28-2008 07:49 PM

You should always have at bare minimum flow 10 times your tank size(in gallons) so you need at least 300gph, better would be 600gph. so if your #'s from the pumps you have add to in between these #'s it'll be fine, which it sounds like it is. i have a MJ600 MJ400 and Skimmer pushing my 25g and my corals are doing well as well as my fish.

Pasfur 10-29-2008 06:02 AM

I would suggest running your AC300 full time, even if you run it empty. The "top down" water current created by a hang on unit is beneficial and difficult to achieve with only power heads.

Kellsindell 10-29-2008 03:32 PM

agreed and it adds to the randomness of the flow.

walkytalky 10-29-2008 05:24 PM

its a done deal. I will leave on my AC on all the time.
Thanks for the help.

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