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Re: Rosy Barb loosing colour and inactive, other one is healthy

Subject: Re: Rosy Barb loosing colour and inactive, other one is healthy
by fcmf on 19/1/2021 12:51:47

I think this is almost certainly the result of living in such a small environment (the nearest analogy being a dog kept in a kennel rather than taken out for exercise) and likely the effect of ammonia, nitrate and high nitrates. A liquid-based test kit to measure these three aspects of water quality is vital (hopefully that's what you now have?), in addition to the larger tank - and it will be particularly important to monitor these if additional fish are added.

Until you get the larger tank and appropriate test kit (if that's not what you have already), do daily or twice-daily water changes of ~25% to improve water quality - these need to be at 0 ammonia and 0 nitrite and no more than 20 above tap water levels for nitrates. The combination of the larger tank and maintaining water quality as described will hopefully resolve the problem (and make it less likely that she is fin-nipped).