cyno or what?

[austinsdad]

Like melosu asked (Feeding frequency - and what are you feeding?), and I'm also interested in what kind circulation you got in the tank. PHs, how many and what gph?

If feeding frozen brine or myisis, I've heard that the water that stuff comes in (frozen of course) contain LOTS of phosphates. I now rinse mine with fresh water after it thaws.

How long ago did the MH lights go in?

Also, check your phosphate readings from your ro/di. Just curious if the filters are OK and need changing.

IME, cycano is reddish and diatoms are brown.

[Hara]

cycano is reddish and diatoms are brown

I cannot see the pic as my work comp blocks it. If it is clearish brown slime, then it is probably dinoflagelletes. The treatment is pretty much the same as cyano.

[2revup]

How often are you feeding and do those areas have enough flow?

everyother day and
tank is 75 gal and i have 2 x 3600 lph and 1200lph this is stacks its about 30 times turn over

If feeding frozen brine or myisis, I've heard that the water that stuff comes in (frozen of course) contain LOTS of phosphates. I now rinse mine with fresh water after it thaws.

this could be my issue i use these food alot

oh and halides on for only 7 hours i cut them back a while ago.