Help! Black algea

[reefwars]

Originally Posted by vince0

I have 2 clown fish, 2 firefish, 1 shrimp goby, 1 pistol shrimp, 1 peppermint shrimp, 3 emerald crabs, a few blue legged hermit crabs.

I've been using RO water the whole entire time I've had this tank for top ups as well as mixing replacement salt water. I don't feed a lot of frozen, but I do feed freshly hatched BBS.

are you testing for phosphates if so what test kit brand??
any other algae in the tank? film algae much?
like naesco was getting at how old is the tank?



basically there could be one cause there could be several best thing to do to get an idea of where it comes from is to post your complete water parameters and everything you test for.feeding schedules and what food.tank size,age,inhabitants and equipmentetc.

its hard for another reef to give you a solid answer on whats the cause of algae unless you post the smallest little details, sometimes you may miss or overlook something that someone else will pick up on

cheers


****edit****

not saying you never posted any info like size and equipment just need more info