Rhodesholar
New member
Hello.
I have a weird problem here.
I have what I believe to be cyano breakout on my sand.
The weird thing here is that a few hours after my lights come on it mostly disappears. It seems to flair up only in the dark.
It also seemed to get worse after my last water change. I do have an RO unit and my TDS gauge was reading 0 on the output but maybe that's not accurate. I did replace the membrane as it was over a year old just to be safe.
The tank has been setup for over a year and I never had a problem till just the last few weeks.
I know water parameters will be requested and I have a Ultra low phosphate checker and Nitrate test kits on order. I am running GFO.
I also grow chaeto in my sump on an opposite lighting schedule from the DT.
This is a 100 gallon system with over 100lbs of live rock and tons of flow. I have two power heads rated at 4100gph on full blast on a wave timer alternating back and forth to simulate waves so this is not a matter of low flow.
Last time I tested my phosphate was a little high but not brutal and Nitrate tested 0. This all seemed to happen after I added chaeto and started lighting my sump.
I know I am not giving much to go on. Maybe once my test kits arrive I can answer my own question but any help on the matter at this point would be much appreciated even with the limited info.
I have a weird problem here.
I have what I believe to be cyano breakout on my sand.
The weird thing here is that a few hours after my lights come on it mostly disappears. It seems to flair up only in the dark.
It also seemed to get worse after my last water change. I do have an RO unit and my TDS gauge was reading 0 on the output but maybe that's not accurate. I did replace the membrane as it was over a year old just to be safe.
The tank has been setup for over a year and I never had a problem till just the last few weeks.
I know water parameters will be requested and I have a Ultra low phosphate checker and Nitrate test kits on order. I am running GFO.
I also grow chaeto in my sump on an opposite lighting schedule from the DT.
This is a 100 gallon system with over 100lbs of live rock and tons of flow. I have two power heads rated at 4100gph on full blast on a wave timer alternating back and forth to simulate waves so this is not a matter of low flow.
Last time I tested my phosphate was a little high but not brutal and Nitrate tested 0. This all seemed to happen after I added chaeto and started lighting my sump.
I know I am not giving much to go on. Maybe once my test kits arrive I can answer my own question but any help on the matter at this point would be much appreciated even with the limited info.
