05-21-2013, 09:03 PM
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neon tetra died. pH too high?
I have a 55 gallon tank that's been running for about 2 months. right now the stocking is 9 neon tetra (was 10), 6 zebra danios, 5 julii cory catfish, a nerite snail, and numerous pest snails. Today I found one of my neon tetras dead. I tested the water and ammonia and nitrites are 0. my test kit didn't come with a bottle to test nitrates so I don't know that level. but the pH is 9 (or higher. it didn't quite match the color). Could this be the cause of the neon's death or something else? I did just add the 5 Julii Cories on Saturday but I had quarantined them first for 2 weeks and they all seem fine.
Also, how can I bring the pH down?