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Old 01-26-2007, 11:18 AM   #11
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That sounds like a great idea. I would put them lower, aiming a little upward. I actually have 2 620 and a maxi-jet 1200 in my 55G. I use the maxi-jet to aim toward the top, for surface ripple.
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Old 01-26-2007, 11:26 AM   #12
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Just out of curiousity, how many powerheads would you recommend for a 150g tank, (48long, 24 wide, 30tall), and should I get more lower rated ones or some more 820s?

I'd like to make a V shape with the rocks.

Also, does anyone have any ideas how to scrape algae and stuff off the bottom of a 30" tank? I don't think I'd be able to reach the bottom.
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Old 01-26-2007, 01:10 PM   #13
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What about the idea of using a couple MiniJets...

http://www.marineland.com/products/asi/mini-jet.asp

... to induce higher flow in those areas where you need it, and reducing the overall flow? I know everyone says you need so much flow based on tank volume, but doesn't it really get down to the actual velocity going over the coral in question? Seems like you could get your tank circulation worked out with lower flow, and then add "spots" of higher flow using the little minijets. Granted, it might be harder to get a random flow pattern this way but would something like that work for you?
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Old 01-26-2007, 01:38 PM   #14
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That might work, Kurt, but the SEIOs have a divider at the output that lets you "split" the output of the water flow in two different directions., the main output can also be directed up and down. I do use a maxi-jet in conjunction with the SEIOs.
Another option is to put the phs on timers, to create semi-random circulation.
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Old 01-26-2007, 01:40 PM   #15
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I think I've got some nice flow now.

They're approximately middle and both aiming up a lot, creating a ton of surface agitation as well as mixing nicely in the middle.

I'll take some pictures a bit later
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Old 01-26-2007, 03:22 PM   #16
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Quote:
Originally Posted by GuOD

They're approximately middle and both aiming up a lot, creating a ton of surface agitation as well as mixing nicely in the middle.
Sounds good to me
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Old 01-26-2007, 03:35 PM   #17
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Quote:
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Quote:
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They're approximately middle and both aiming up a lot, creating a ton of surface agitation as well as mixing nicely in the middle.
Sounds good to me
Well, I just came back home and 2 of the frogspawn ends went inside. I decided to change the flow a bit to create less and I also decided for now to just move it and stick it in the sand infront. I'll take pictures in a bit
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Old 01-26-2007, 07:06 PM   #18
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If you change the flow that will be enough to cause them to slough or not look quite so great. But if it`s the change then they`ll eventually come out but if they are getting blasted then you`ll be able to see and you`ll have to change the flow around.
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Old 01-26-2007, 08:29 PM   #19
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Thanks Mike, I tried to take that into consideration when making my judgement.

For now, almost all my corals seem to be doing well - i had to move the frogspawn from the middle area but all is well.

My toadstool leather has been sloughed for several days now - I've been moving him around a lot and everything though. As soon as I got my new light he sloughed because it was too strong, so I moved him down and he never seems to be happy. Right now I have it down in the sand again and I'm gonna try leaving it there a few days.

I also got a colt coral which shrivels when placed in the top 60% of the tank, but in the bottom half it just falls over. I've just stuck it inbetween some rocks now because it's attached to an odd piece which makes placement hard. I'm hoping to gradually move it up to higher light/more flow.
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