Little yellow slug

[k-t ranch]

Does anybody know what this is, they seem to be multiplying fairly rapid. Are they good bad or indifferent? If bad how do I get rid of them?

 

[S-t-r-e-t-c-h]

Look like little yellow sea cucumbers. The ones that you can buy are filter feeders, but those look like they might be sand sifters?

 

[Fish_Boy_Wonder]

Does anybody know what this is, they seem to be multiplying fairly rapid. Are they good bad or indifferent? If bad how do I get rid of them?

Kinda looks like young Stichopus horrens, Are these (in your words) babies?
I’d be happy to take a few off your hands if you don’t like them.