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#1
08-17-2010, 02:05 AM
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I use an aquaclear filter because it agitates the water and adds oxygen.
Now i also added a koralia incase the aquaclear stops. In the past in heavilly planted tanks I used an air stone but only at night. I don't care for the bubbles that much. I just ran the air pump oposite to the lights.
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72 Gallon Bowfront Reef.. Hardware:2x250w Luminex Elite HQI Reflectors (Phoenix Hexarc Bulbs), Galaxy 2x250w Electronic ballast, Euroreef 130 Skimmer, Sedra KSP 7000 Retern... Live Stock: Pair of Hawaiian Flame Wrasse, Leopard Wrasse, Pink Streaked Wrasse, Pair True Percula Clowns, Potters Angel, African Flameback Angel, Orange Fin Tomini Tang, Yellow Assessor, Tailspot Blenny, Purple Firefish.. 45 G FW Asain Barb Community tank. 
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#2
08-19-2010, 03:00 AM
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like Wingin It said, i can almost say for sure that it was the vacuuming of the gravel that released ammonia and what not into the water which starved the fish of air. I personally do water changes 2 times a month. and have a bubble stone in the tank to keep the water airated.
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#3
08-19-2010, 06:00 PM
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Had the same happen and after tested the water and the ammonia spiked to over 30ppm. The guy I spoke to is a marine biologist and he said that when I stirred up the gravel that much I took out all the bacteria that controlled the ammonia causing it to spike to toxic levels killing most of the inhabitants. Now I never stir the gravel during water changes.
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