wingzfan
Member
OK so I just did one of my many water changes that I've been doing for a while in an attempt to get my nitrates down. I switched my bioballs to live rock rubble and the trates are steadily decreasing. The water has also gotten crystal clear. However, over the past 3 or 4 days, I have developed a brown, thick, oily, sludge on the top of the water. I've never had this before. Any ideas why I'm getting this stuff?
Paramaters-
Trates- about 15
Trites- .15
pH- 8.2
Alkalinity- 1.5
Ammonia- 0
Paramaters-
Trates- about 15
Trites- .15
pH- 8.2
Alkalinity- 1.5
Ammonia- 0