ok thanks for the input. I will just use a couple few low wattage bulbs and see what I can get done. I am thinking maybe 1/3 of the total floor area covered with the mix you sugrested and it being the 1/3 furthest from the water area. As for drainage it shouldn't be an issue as the is basicly under substrate dranage across the whole bottom that drains into the filter. ( btw YUCK on cleaning the fliter daily) but as I said they seem to like it and still haven't managed to catch all the fish and shrimp in the area thou 2 of them work at it on a daily basis keep them busy and outta trouble *laugh*.

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