I had the same problem. I added a fuge and switched to RO which helped out
a lot. I still get a little brown algae on the sand, but not as much as
before.


"Mislav" wrote in message ...
Hi,

I'm wondering how is everyone here maintaing the sand. I have problem with
it, it constantly gets algae growth over it. First diatoms, then cyano. I
have very fine aragonite based sand.
Is anyone sifoning the debris from sand or shifting it and how often? Any
other methods?

tnx