Sometimes I inadvertently add too many black worms and they end up in the spawning mops. Any thoughts on if they will eat the eggs in the mops??

I suspect that they could. Other smaller worms and mites seem to eat them in incubating containers after collecting. The fish should find the worms and eat the worms in preference or in addition to eating their own eggs. Feed less worms and alternate so the fish are hungrier.

Sometimes if I know I will have a long day at work I feed a generous amount of blackworms to quell any excess hunger without fear of degrading the water quality. Blackworms seem to migrate right to the spawning mops in my tanks if even slightly overfed.

Thanks Lee

I typically find some blackworms in my mops when I pick eggs. I can't say for sure, but my sense is that they do not eat or otherwise bother the eggs. I don't seem to find them touching eggs or find any more "soft" eggs in mops where I find worms. I do remove the worms and throw them back into the tank the mop came from, but that is more about not wasting them than concern for the eggs.

Lharper's suggestion that worms in the mop might encourage adults feeding from the mop in general seems valid though I can't say I have seen that either.

Andy