high nitrate

Can High Nitrates Kill Fish?

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Can High Nitrates Kill Fish? The danger of excessive nitrates in aquariums is often misunderstood by aquarium hobbyists. Although far less toxic than ammonia or nitrite, high nitrate levels—called nitrate poisoning or nitrate shock, can also kill aquarium fish. What do I do if my fish tank has high nitrates? Add live plants to a

How Long Till Fish Recover From Nitrate Shock?

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How Long Till Fish Recover From Nitrate Shock? If nitrate levels are not reduced, more fish will begin to show symptoms. Eventually, fish death will begin, occurring over a period of a few days to a few weeks. When fish are suddenly exposed to very high nitrate levels, they will usually die within 24 hours