I have 5 black kuhli loaches. I started with 2 of them and then added three more a couple weeks later. Last night I noticed that they were REALLY active. They were all zipping around the tank faster then I have ever seen them before. I then noticed that one of the original ones had gone from his strong red undertoned java color to white, with a red stripe the entire length of his sides. He was acting just like all the others in every way.
Water is testing fine (nitrates/nitrites, pH, etc.) and we haven't made any recent changes?
Any ideas on what is going on.
Oh yeah. Tank mates are 5 guppies (4 males 1 female, accident) and 6 glolight tetras, and the other 4 black kuhli loaches. Its a 20 gallon tank.
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