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29-11-2006, 01:04 AM | #111 |
Endangered Dragon
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29-11-2006, 01:05 AM | #112 |
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29-11-2006, 01:05 AM | #113 |
Senior Dragon
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29-11-2006, 01:05 AM | #114 |
Arofanatic
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29-11-2006, 01:06 AM | #115 |
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29-11-2006, 01:06 AM | #116 |
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29-11-2006, 01:06 AM | #117 |
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29-11-2006, 01:07 AM | #118 |
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29-11-2006, 01:07 AM | #119 |
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29-11-2006, 01:18 AM | #120 | |
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Quote:
so much buy and sell for AT i nearly missed your reply a sand or bed filter is like a tube filled with sand the water is pumped in from the bottom of the tube the the water passes throw all the grains of sand then back into the tank they are very very good bio filters as each grain of sand provides a large surface area |
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