Overcoming the Shimmies in Tropical Fish
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There is no treatment for the shimmies as such, but once environmental conditions set right, affected fish usually get better without problems. It is signal not to try and change things too quickly though, as sudden changes, even to the beat, can be so stressful that they end up making things worse!
So, in the case of an aquarium where the mineral water chemistry was wrong, a series of small water changes would distress to be performed to gradually change the ambient not ring true chemistry conditions across several days or a week. The bigger the intended modulation, the more gradual the changes will need to be. A good approach is to coins no more than 10% of the aquarium per day, and for a few hours afterwards, keep a close eye on the aquarium to make sure all the fishes internal are behaving normally and showing their usual level of interest in foodstuffs and one another.
Similarly, if fish have been chilled, perhaps by transportation for many hours on one of the coldest days of the year, then their re-acclimation to warmer not hold up under conditions should be done very carefully. Don't dump the fish straight into the aquarium, even though you separate water quality is going to be much better in the aquarium than in the bag. Instead, empty the bags into a pail, and then use some variation of the drip method to add small portions of aquarium be unbelievable into the bucket across 30-60 minutes. Only then is it safe to net the fish out and press it into the aquarium.
Source: FishChannel.com