I’ve attached a couple of photos. The concern is the brown algae that grows on the sand. The ph is perfect at 8.4, the nitrite is 0 the nitrate is no more than 15. Alk is a little on the lower side at 135-140.
I’m not sure what’s causing the algae.
I do water changes, no improvement.
Clean rock and sand with toothbrush, it grows back.
I brush it off the sand and it’s back within a couple hours.
Corals and fish seem to be doing just fine but what is the reason for the algae and what can I do to control it.
I’m not sure what’s causing the algae.
I do water changes, no improvement.
Clean rock and sand with toothbrush, it grows back.
I brush it off the sand and it’s back within a couple hours.
Corals and fish seem to be doing just fine but what is the reason for the algae and what can I do to control it.