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Old 10-13-2011, 04:38 PM   #11
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Originally Posted by rick82
I have been looking at buying a metal halide for a while now and one has come up at an affordable price. Is it possible to have too much light beacause its 2 x 250 watt halide's?
Not for an anemone. For corals yes. I would put it lower in the tank if you're worried about it. Or remove a bulb.
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Old 10-14-2011, 03:47 PM   #12
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The tank is 185L. though i measured the actual water from the sand to the top of water line and took into account the Rock and filters and worked it out at about 100 litres, 21 gallons.
Now this would give me aproximatley 3.1w/litre of water. Is this still a bit low and the reason the BTA is not doing well?
Do i take into account the amount of actual water, or the the volume of the tank itself?
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Old 10-14-2011, 03:55 PM   #13
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We use watts per gallon as a general guide, but we're not illuminating volume pet se. It's got more to do with lumens per square foot. (I believe that is lux. Someone correct my terminology.) you need the right spectrum at the right intensity reaching the animal for the right photoperiod. Anemones need intensity, and I don't think you have enough. I can't recall how deep your tank is, but as the tank gets deeper, you lose intensity.
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