The search function will bring up lots of good suggestions to your questions.
Also check out the reference library section http://canreef.com/vbulletin/forumdisplay.php?f=40 a lot of what you have been asking has been answered many times before.
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- Greg
90G : Light - Tek 6xT5 | Skim - EuroReef RS135 | Flow - 2xVortech MP40W | Control - Reef Keeper 2
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