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Old 03-09-2011, 03:53 PM   #1
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Dying Fish

29 Gallon tank that has been established for 1 year. Fluval 205 filter.
Chromis, bi color blenny, twin spot goby, clarki clown are remaining fish along with snails and crabs. Have alot of green hair algae growing on everything. I did a water change yesterday and this morning a damsal is dead and my blenny is at the bottom tucked by a rock and his color is fading. My ph is 7.8, amonia 0, nitrate 10, nitrite 0. I currently lost a coral beauty last week. None of the fish are new to the tank. Does anyone have any suggestions of what might be going on?
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Old 03-09-2011, 04:05 PM   #2
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What is your SG and how do you test it?
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Old 03-09-2011, 04:49 PM   #3
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I only test for ph, amonia, nitrite, nitrate. Water is bought at local fish store.
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Old 03-09-2011, 05:00 PM   #4
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Your nitrite levels are very high, not sure of what caused it but I'm pretty sure that's why you had the losses
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Old 03-09-2011, 06:27 PM   #5
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I had them reversed Nitrate is10 and Nitrite is 0
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Old 03-09-2011, 09:03 PM   #6
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What is your salt level at (SG) and how do you test it with a hydrometer or a refractometer? I am thinking the SG changed to rapidly and that might be causing the problems. I know I test before and after I do a water change to make sure nothing has changed. Before I got ATO's on all my tanks I would top off with fresh water and then do the water change. I know one time I got a friend saltwater at a LFS and it was a big difference than what was in his tank so he had to get some extra salt from me to bring it up to 1.024 (that is what he uses for his tank) I use 1.025.
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Old 03-09-2011, 09:54 PM   #7
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just did it and mine is at 1.028
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Old 03-09-2011, 09:55 PM   #8
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That's fairly high, do you top off with saltwater or freshwater? Either way it needs to come down
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Old 03-09-2011, 10:04 PM   #9
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I would do a 20 or 50% water change. The sg should only be around 1.020-1.025 the rapid change is what is probably killing them. Also the water change will bring the ph back up to around 8. Corals like a higher ph I'n the water. Are you doing 10% water changes a week?
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Old 03-09-2011, 11:04 PM   #10
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I do a 20% every 2 weeks.
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