Dear Bros,
I got alot of brown Algae on my sandbed, is it harmless???? How do i control my Algae, my No2,No3 is 0 but Po4 is 0.25 i alway get 0.25 using API test kits. I have use henry Po4 but so far never come down. What should i do to control my Algae, what eat algae good beside sea cucumber & snail.