I have a 125 gallon tank of various Malawi cichlids.

Last night, I noticed a small cichlid (3 mm) looked like a Blue Cobalt,
hiding under a rock. He was the only one I saw. After staring at the tank,
I noticed worm like larvae swimming near the top of the tank, twirling like
little mosquitoe larvae. They had knobs on top like tadpoles.

I have never attempted to breed my cichlids. My question is, are these
twirling larvae cichlid larvae? or perhaps a parasitic infection? I have
turned off my powerheads to make the water less turbulent for these larvae
in the event they are cichlids. What should I do now? This all has just
sort of happened overnight?!?!

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Thanks so much