Help On Maintanance

[kaptnskipy]

HELLO TO ALL
I HAVE STARTED A 55 GAL FISH TANK AND HAVE A LARGE DUAL BIO WHEEL FILTER AND A SINGLE WHEEL FILTER IN THE TANKS ALONG WITH A POWER HEAD AND UNDERGRAVEL FILTRATION. I HAVE FISH AND A STRIVING SABAE ANEMONE BUT I AM GETTING LIKE A BROWN YELLOWISH DIRT ON THE ROCKS BUT NO MILDEW ON THE GLASS??? NOW THIS DIRTS I CAN MOVE OFF THE ROCKS WHEN I USE A LARGE SEASHELL INSIDE THE WATER BUT IT JUST SEEMS TO PILE BACK ON. PLEASE HELP BECAUSE I AM NOT SURE ON WHAT TO DO?
THANKS TO WHOMEVER HELPS

 

[logan15]

sometimes you get dirty live rock I use a turkey blaster to keep my pores clean in the rock.I would remove the underground filter IMO

 

[keltic]

Sounds like it could be diatoms. Common in high silicate waters. Also usually bloom in new tanks and later subside provided water parameters kept in check.

 

[cboyfan2020]

if you can wave it off with your hands it is diatoms. I also strongly recomend dumping the UGF. It will be more trouble than its worth IMO