Want to Increase Flow ... Suggestions?

[Sweetpea]

I want to increase the flow in my 90g tank (48" long). Right now, all I have are the 2 - 1" returns from the sump. My return pump is a Turbo Sea 1100.

I am almost decided on modded MaxiJets (I'm open to suggestions), but I am not certain how many I should get. I know I want at least two (near the top at opposite ends of the tank). I'd also like to have some flow across the back/bottom of the tank. I have a center overflow, and I'm wondering how much good PHs down there are going be when the overflow obstructs full flow. Any thoughts?

[jojo22]

I'd do the korola's (sp)

[dakar]

Tracy, I'm still rather partial to the Seio PH's... a pair of them on opposite sides of the tank really moves some water... and letting their *streams* collide makes for some great turbulence to increase gas exchange. Putting them in back corners generally improves the flow behind your aquascaping as well (all that water being moved has to be replaced from somewhere right? Even if it doesn't leave the glass cage)

[dberrong]

Do you suggest putting the PH's near the top of the tank, middle, or bottom behind the LR? Anyone have any info on prefered placement?

[Sweetpea]

I had a Koralia 1 here (bought it for one of my nanos but never got around to taking it out of the box), and I put it in the 90g around 11am. My pavona, pocillipora and millepora retracted immediately. I adjusted the flow so it went more over than at the corals, and it made no difference. I unplugged it after a couple of hours, and even four hours later they had not relaxed enough to open up.

<sigh> I know I need more flow because I have to regularly blow detritus off my plating monti (top/center of the tank). I simply(?) need to determine what is best for my corals and the limited space that they live in.

[melev]

I had a Koralia 1 here (bought it for one of my nanos but never got around to taking it out of the box), and I put it in the 90g around 11am. My pavona, pocillipora and millepora retracted immediately. I adjusted the flow so it went more over than at the corals, and it made no difference. I unplugged it after a couple of hours, and even four hours later they had not relaxed enough to open up.

<sigh> I know I need more flow because I have to regularly blow detritus off my plating monti (top/center of the tank). I simply(?) need to determine what is best for my corals and the limited space that they live in.

You do have to give your corals some time to adjust to the new flow.

[Sweetpea]

Thanks a lot everyone! I'm still making my final decision, and it may contain PHs on a wave-maker timer AND flow accelerators

Marc, I appreciate your comment... yes, I had neglected to allow time for the corals to adjust to the new flow. :o

[Eznet2u]

I have a 20g tall and a 60g. The 20g has approx. 1000 gph running through it.
The 60g has over 3000 gph and I still need more.

Your corals will be mad at you for a few days...then they will love you for it...
My suggestion would be 4 Koralia 4's. 2 at each end.

Just a thought.

[stevo4535]

What about the Tunze 6045 or 55 and putting them on a controller.

or.... these bad boys-

http://www.drsfostersmith.com/produc...=0033396000000

[Sweetpea]

Dang - I'm so distracted I didn't even finish my post above...

I'm concerned b/c the Koralia 1 is only 400gph! Would putting the PHs on a wavemaker make a difference?

I really appreciate the help!