snails dieing

[sittnon18s]

i have a 75 gal reef tank with about 30 different cleaner snails. they keep dieing off and l lost my sally lightfoot crab, and a green emerald crab why are they dieing. there is lots of algea in my tank at the moment

 

[charlesr1958]

If many different inverts are dieing off, I would suspect an issue with water quality. What are your nitrate and magnesium levels and the alkalinity, salinity?

Chuck

 

[sittnon18s]

just my red legged crabs are dieing. my sallylightfoot just shedded which made me happy. all levels are near perfect. just tested them

 

[charlesr1958]

Strange that only the hermit crabs are being affected and would not have a clue as to why that is. Sorry.

Chuck

 

[serolis7]

If the water parameters are okay... mantis shrimp? By any chance have you heard any clicking noises coming from your tank? Any of your victims would make a tasty snack for a hungry mantis.