Angels attacking clams

[hazel]

My flame and flameback angels, that have been in my tank for 8 months recently keep attacking 2 of my clams ( 3'" and 4" in size). The clams have been here for 3 months. Other clams are not touched. Is there any reasons for this? Are the clams sick so they attack them? Should I feed more frequently? I have put the smaller one in my sump, with lights on, to avoid the angels, is there any problem for this?

Thank you for your reply!

 

[MiNdErAsR]

Angels are well known to be pickers. They pick at everything. When they stress out a clam, it releases a sweet scent, making them all the more attractive to the fish.

IMO you have a choice to make. Either the clams or the angel fish have to go. Decide quickly before they kill the clams.

IME

 

[simonh]

Is there any particular coloration on the clams that have been attacked ? Maybe these clams were picked on because the colouration or spots look like a common enemy of / or similar to the angel.

I would take Jim's advice and keep a very close eye on the clams and fish. Unfortunatley it sounds like you may have to make a difficult decision in the very near future.