I had hoped I was done, but what Steve said reminds me of an important consideration. I know Alan mentioned it, but the depth of the tank would make me change my recommendation. If you must stay with PC's (and I know you just purchased some, so you most likely will), and if the tank is deeper that 18", I would go with a BTA instead of a LTA. A BTA will move to where there is more light, but a LTA is forced by its anatomy to stay on the bottom
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Bob
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To be loved you have to be nice to people every day - To be hated you don't have to do squat.
---------Homer Simpson--------
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