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Discussion Starter · #1 ·
What is an acceptable amount of die off? I have a newly established tank... about 2 months and everything is fine but occasionally, I'll loose a tetra. I have a few schools of various tetras and have lost about 3 out of 25. Is this normal?
 

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Like ammonia is 0ppm,nitrite is 0ppm,nitrate is below 20ppm.Those are perfect water parameters.What are yours?

Some tetra are not very hardy.What kind are dying on you?
 

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A die off is not at all normal. You will sometimes lose a single fish that dies of old age, I recently lost a breeding female molly that way, but a small percentage on a regular basis means something is wrong. The other queries by people are meant to help you help us identify the problem so that we can help you recover the proper conditions for your fish to survive well.
Please let us know what you do in terms of maintaining the tank and its equipment along with a complete set of water stats from temperature to pH to ammonia, nitrites and nitrates. This will help us immensely in diagnosing what may be wrong and how it can be corrected. Keeping fish is actually very simple compared to what many people think. If you take good care of your water and put a bit of food in the tank every day, the fish will pretty much take care of themselves and they will be robustly healthy. Anything less usually means that you have missed something important about keeping the water quality good for the fish that you have.
 

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Discussion Starter · #8 ·
Levels are all zero.. tank has been up and running for a couple of months now. Everything is going fine, I just lost 2 lemon tetras and 2 cardinals over the span of a few weeks. I do 30% water changes once a week. I think it just had to do with the quality of the fish I got from the store. Also PH is about 7.2.
 

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neon tetras are considered annual fish in the wild. In our tanks they can live much longer.

If you have lose only 3 of 25 fish I personally think you are doing fine. After all some fish are older, have less immunity, or various other problems.

just my .02
 
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