So my tank has been running for 3 weeks. I went with a fish in cycle of 5 yellow tail damsels. Have live rock and agrate substrate. Also running a sump and protein skimmer. Have one rio 1400 power head to provide circulation mounted on one side of tank and the sump return in the other side.
Today I noticed alot of brown stuff on the sump intake box (I don't know proper name off top if my head). And thru out Day it seems to be growing. Last look I seen it on the skimmer intake, and power head. Also some on the sand too I believe.
Doing my research some articles said it was good, some said it meant my cycle was about complete. I don't really like it tho so was researching ways to control and remove it. I read tangs, and snails. I currently have about 13 turbo snails in the tank (in adding about 5 a week) but don't think they will get on the sump intake box. As for parameters I tested last night and they were within tolerance. Also last night I had to too do a emergeny rehome of two stripped damsels into the 55g from my 20. They were hurting but today they look 100 times better. Its a chest showing show in that tank tho because of the damsels.
But my question is what do y'all think about the diatom? Should I worry about it? Wipe it off? Get a tang or flame angelfish?