Hermit crab

[mohi]

Is my hermit crab coral safe ?
I'm a beginner, I have some new corals in my tank and they are getting sick .
I thought maybe my hermit crab attacked them ! I haven't see him attacking but he might do it at night .
Please help!

 

[acer]

Usually hermits are pretty safe -certain ones will be a pain. But if the coral has some algae on it or it is dying/tissue regression then hermits, whom are opportunistic omnivores, will therefore pick at it. If you are a beginner - chances are your corals are "sick" due to other reasons= water parameters, lighting, etc. Give us your setup , type of corals, water parameters, etc. so we can help more.