MbunaJohn
Community Member
I've been dealing with cyano-bacteria for about the last 4 months of a 6 month old tank. I was going to purchase chemi-clean to try to remove it, but was hoping someone could look at these photos and tell me for sure that it is cyano first. Here are the water parameters and what i've tried:
75g Acrylic Aquarium (SeaClear Systems 2)
pH: 7.9-8.4 dark-full light
Temp: 76.5-77.5
Alk: 10.5-11
Ammonia: 0
Nitrites: 0
Nitrates: 9 (as tested last week. I turned off auto-feeder and did a 20% water change...haven't retested yet)
Phosphates: 0
Magnesium: 1320
Calcium: 480
With the lights off this stuff disappears...reappears about 5 minutes after lights come on and spreads throughout the day.
If i turn lights off completely for 3ish days it goes away completely but is typically back in about 2-3 days.
H2O2 dosing had no effect on it.
I siphon it out and pick out what i can't siphon with tongs once a week with the 15-20% water change. It is usually back in full force within about 2-3 days.
The thing that makes me wonder if it's cyano is that it seems to thrive right in front of my powerheads. The flow in the tank is pretty high and i've experimented with the WAV's until i don't seem to have any dead spots at all and if i turn them up any more i blow sand all over the place.
Excuse the dirty glass...there was a lot of algae on the front and isopods and copepods were all over it when i took these...it has since been thoroughly cleaned.
Any ideas?
75g Acrylic Aquarium (SeaClear Systems 2)
pH: 7.9-8.4 dark-full light
Temp: 76.5-77.5
Alk: 10.5-11
Ammonia: 0
Nitrites: 0
Nitrates: 9 (as tested last week. I turned off auto-feeder and did a 20% water change...haven't retested yet)
Phosphates: 0
Magnesium: 1320
Calcium: 480
With the lights off this stuff disappears...reappears about 5 minutes after lights come on and spreads throughout the day.
If i turn lights off completely for 3ish days it goes away completely but is typically back in about 2-3 days.
H2O2 dosing had no effect on it.
I siphon it out and pick out what i can't siphon with tongs once a week with the 15-20% water change. It is usually back in full force within about 2-3 days.
The thing that makes me wonder if it's cyano is that it seems to thrive right in front of my powerheads. The flow in the tank is pretty high and i've experimented with the WAV's until i don't seem to have any dead spots at all and if i turn them up any more i blow sand all over the place.
Excuse the dirty glass...there was a lot of algae on the front and isopods and copepods were all over it when i took these...it has since been thoroughly cleaned.
Any ideas?
