A SAMPLE EMERGENCY
In fishkeeping, some of the things we do successfully can become our regular fish husbandry practices. Take feeding our fish, for example. I know for a fact that some monster fish keepers buy a bag of feeder fish and dump the whole bag in the tank to enjoy the feeding frenzy that results. This is an exciting way of feeding your fish and has some advantages; for one, this can help them attain big sizes quickly.
However, this is quite risky since overfeeding monster fish can cause them to vomit. And once this happens, it spoils the water and kills the fish.
If you happen to be at home when this happens, you can take action. If the water is spoiled, a water change can’t do much. If you have aged water on hand, do a 100% water change and then clean the filter. Then they might have a chance. If you’re dealing with this situation, quick thinking and swift action is required. The best thing to do is to transfer them to another tank, and hope that they aren’t stressed out by the procedure.