Hey guys, my 55 gallon cichlid aquarium is all cycled and i'll be getting fish in a week. but my tank has algea all over the glass. Normally I would just buy a rubber lipped pleco but I've read mbunas are known for killing plecos. I wanna know would apple snail shells provide adequete deffense over a mbunas bite. And would they be alright to add to the tank?