well one of my cleaner shrimps has gone missing and i thought heh he will molt and come back no problem but i have just heard a horrible clicking noise from the tank
and there is what looks like some chiseled rock debris on the tank floor so what can I do bearing in mind there is livestock in my tank. thanks in advance guys james.
and there is what looks like some chiseled rock debris on the tank floor so what can I do bearing in mind there is livestock in my tank. thanks in advance guys james.

it could be that what I thought was a molt was in fact one half of shrimpy
i he has not returned by tomorrow night i shal investigate further and remove the rock i think the mystery killer is hiding in