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Old 10-20-2009, 05:02 PM
Fishward Fishward is offline
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Thanks guys,
Seems im on the low side for this tank.. I do want to keep corals so i'd better go about getting a powerhead i guess.
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Old 03-24-2010, 01:32 PM
kodadad kodadad is offline
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I have a 33 gallon and I am running 2 koralia 2's, a maxijet 1200 on my skimmer and Aquaclear 50

Works out to around 60x flow A lot but no one seems unhappy...
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Old 06-28-2010, 12:04 AM
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In my 29g I have a 750g/hr, 850g/hr, another very small powerhead. A fluval 450 which puts out at least 250g/hr at its setting, plus the Red Sea Prism Skimmer... So flow isn't a problem for me, or dead spots
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Old 09-14-2010, 06:03 AM
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Rbacchiega Rbacchiega is offline
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*cracks fingers and neck*
ahhhh, first "real" post since the return.

Alright, if your tank is anything like I remember hex's to be it's a taller tank, so you'll need to keep that in mind when it comes to things like coral placement, lighting and of course, flow.

What kind of corals you plan on keeping will determine just how much flow you're going to need/want.

For softies/lps you could realistically get away with a larger, powerful powerhead (think Koralia 2 or 3) placed lower in the tank to provide an upward/circular current and your return pump to pick up the slack near the higher parts of the tank. If you're going the SPS route, you'll need more flow, alternating currents and a strong light source...so even though you may be in the early stages of planning this reef out, a final picture is needed so we know what you're shooting for.

Welcome to reefing, may the gods have pity on you ha ha ha
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Old 09-14-2010, 06:09 AM
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lastlight lastlight is offline
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Agree with all that except the SPS/random flow bit. I think that's been hyped a bit much. I might also be saying that because I can't currently afford any sexy controlled powerheads but my sps are very happy.

(first response to your first real comeback post)
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Old 09-14-2010, 07:42 AM
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ElGuappo ElGuappo is offline
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i ran a 10G with a vortec mp10 in it plus a K nano and hob filter..
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Old 09-14-2010, 02:24 PM
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one thing I didn't see mentions is it isnt so much a case of to much flow but how you flow is.

My last tank had a flow rate equal to 125X the size of the tank, my new one I will be shooting for 150X, but while there are benifits to massive water movment you have to do it right.

you don't want a power head like a maxijet making your flow as this is way to concentrated and will kill corals that are to close, what you want is pumps like Hydor Korailia, or tunze which create a large lamaner flow instead of a water jet. the idea is to get the whole water colume moving.
when this is set up right you can have massive turn overs but when you put your hand in the water all you will ever feel is a gentle current everywhere in the tank.

what I would recomend for you is to start of by adding two 425gal/hr Hydor Korailia and play with them to get a gentle flow through out the tank and see how it works for you. that will give you about a 25X turnover.

Steve
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Old 09-14-2010, 02:24 PM
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Quote:
Originally Posted by lastlight View Post
Agree with all that except the SPS/random flow bit. I think that's been hyped a bit much. I might also be saying that because I can't currently afford any sexy controlled powerheads but my sps are very happy.

(first response to your first real comeback post)
I MISSED THIS!!!

Random flow doesn't need a fancy controlled powerhead...hex's have lots of angles to bounce current off of silly nilly.
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