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No white spot or burning, just lush green gha all over the screen, anyways thank you verymuch for the advise

Yes its 32mm primary drain

It's a 3000 lph return pump, with no bends and only 1 meter to travel so not a lot of head loss. The scrubber is gravity fed from the main down pipe on a twin standpipe overflow.

Flow is lph sorry.

I lost a zoa colony, but I think they were the famous melting hong Kong zoas but also 2 monti frags, they just bleached out but everything else is thriving.
Ive just ordered...

No I went with a waterfall in the end, bios starts on this page for it.
http://www.ultimatereef.net/forums/showthread.php?t=638772&page=5

Hi Guys
I need some advice on my scrubber, every week a get GHA and a good amount off of my screen but i cant seem to bring my nitrates down to 0 or any where near, they are about 10 to 15 ppm. and...

Looking good

Thanks for getting back, I would have about 4 inch either side of the screen. Maybe enough to get 2 10w's on each side to stop the intensity fading off quite so much ???

What's the official verdict on 660nm multichip leds if I use a diffuser?
Just thinking of using 1 10w chip on each side of a 6"x8" waterfall

what about the scrubber side what does that look like ?

Hi Im planning a scrubber for my new build and for the amount of food i imagine i will end up feeding (Guessing) about 1 or 1.5 Cubes a day or there abouts.
its a 200ltr mix reef
i want to plumb my...

What about these ???
http://pages.ebay.com/link/?nav=item.view&id=390497336126

hi yea the flaps at the top and bottom are made for standard aquarium glass cleaning magnets to be fitted, the air pipe was only supposed to be standard flexible tubing but i think now as you...

Hi Guys I've been reading your info on scrubbers for ages and its luring me back into wanting to set up another reef tank from a very long absence, i have looked at designing my own from inspiration...