What are these bug type critters

[jeemann99]

Are these harmful? can these the the problem with my Ricordias dying or shrinking

I have white ones and red ones.

Good, Bad or ok?

 

[Duc1098]

Look like chitons to me.

 

[jeemann99]

Good, Bad or ok? do they harm corals? if so, what eats them

 

[ostrow]

If chitons be happy. But I have never seen a red chiton....

 

[SPS_Addiction]

Those things are harmless.

 

[Sullyman]

Stomatella snails in the second pick, great addition to your tank and it looks like they're
spawning to see that many. Good luck.

 

[jeemann99]

Thanks all.

Sullman- I have a TON of these guys when lights out. Barely see through the glass, but disappear as soon as lights on.

 

[Sullyman]

They're scavengers and do a good job but only at night. Daytime they hunker down under their shells, which are very small and look like bumps on glass and rocks. You had to have had a spawning in your tank. They do the work of turbos but don't get knocked off the glass/rock and eaten a la S Car GO.