Diatom Outbreak.. why?

[OCDP]

Digging up a thread from the past..

I still have a diatmon problem... is this simply still from using conditioned tap water? I thought it would come and go.. as it did, but it tends to come more than it goes haha. It's just a film of golden brown algae that settles over the sand. I don't feed heavy and I do not feed very often, if I do.. it's a small amount of flakes, and mysis is once a week (and sometimes not even)

Is there any chemical I could use, like chemi-clean or anything that might help ? Or do I just suck it up until I get the cash/time to order an RO/DI unit?

Thanks.