Just wondering whats going on here
I have a 220 gal tank and 2 30 gal frag tanks all plumber together in a 150 gal sump. The 220 with a sandbed and the bare bottom frag tank show no cyano at all. but the frag tank with a shallow sand bed is crazy full of cyano.
i added a few powerheads so it is not flow. that thing is swirling like a hot tub lol
i dont believe it is the lights. it has a led fixture but switching the fixtures between the frag tanks didnt reduce the cyano.
i amm getting tired of blowing off frags everyday.
po4 is .04 on a hanna checker
nitrates undetecable
calcium 450
alk 8.5
i like having sand in there but i am getting to the point of pulling all the sand out and see if that helps
any other ideas??
thanks
bob
I have a 220 gal tank and 2 30 gal frag tanks all plumber together in a 150 gal sump. The 220 with a sandbed and the bare bottom frag tank show no cyano at all. but the frag tank with a shallow sand bed is crazy full of cyano.
i added a few powerheads so it is not flow. that thing is swirling like a hot tub lol
i dont believe it is the lights. it has a led fixture but switching the fixtures between the frag tanks didnt reduce the cyano.
i amm getting tired of blowing off frags everyday.
po4 is .04 on a hanna checker
nitrates undetecable
calcium 450
alk 8.5
i like having sand in there but i am getting to the point of pulling all the sand out and see if that helps
any other ideas??
thanks
bob


