Tropical Fish Keeping - Aquarium fish care and resources

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twilk2012 02-20-2012 06:37 AM

Water changes, Nitrites still high
I've been doing daily water changes but my nitrites are still high and I am losing fish. 60g tank
ammonia 0
Nitrates 20
Nitrites 10

2 Tetras left
3 Swordtails
1 Gourami
1 Cory

I have added Prime to tank. What do I do next?

Mikaila31 02-20-2012 07:31 AM

change more water. I would start with a few full 90-100% water changes.
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Geomancer 02-20-2012 08:00 AM

Prime will de-toxify Nitrite for a limited time, but isn't permanent.

How much water have you been changing daily? 10 ppm of Nitrite is extremely high, so I would follow the previous posters advice and change as much water as possible now, then do 50% daily until you get a reading of 0 ppm Ammonia and Nitrite. Don't take the fish out, but drain it until there is ~1 inch of water left above the substrate then refill with fresh water. Use something like a bowl to deflect the water as you slowly pour it in to not disturb the substrate.

Speaking of freshwater, have you tested your tap water? Sometimes you can get either or all three straight from the tap.

How much are you feeding a day? Keep it minimal and no more than twice a day. Excess food will increase the problem.

From your numbers you may be nearing the end of your cycle... 0ppm Ammonia and a reading of Nitrites means you are in the final stage, just need to get those Nitrites under control.

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