Hello.
I did a 30% water change in my 90gl last weekend and when I did the water change I stuck my siphon tube all the way down to the bottom of my approximate 2" sandbed, sucking up the yuck. I now have a section of my tank that is getting cyano on a daily basis. I am wondering to battle this, if I should just siphon the top layer of my sand bed every 2 days to remove the new cyano until it disappears, or should I do another 20% water change and dig into the sand bed once again? I have filter sock in system to capture debris as well.
BTW...water parameters before and after my last water change are on par..
Nitrate = 0.0 - using new Hanna High range test kit
Phosphate = 0.03 - using Hanna Low Range Phosphorous test kit
Tank is 10 months old, never had any algae issues. Run UV as well.
I did a 30% water change in my 90gl last weekend and when I did the water change I stuck my siphon tube all the way down to the bottom of my approximate 2" sandbed, sucking up the yuck. I now have a section of my tank that is getting cyano on a daily basis. I am wondering to battle this, if I should just siphon the top layer of my sand bed every 2 days to remove the new cyano until it disappears, or should I do another 20% water change and dig into the sand bed once again? I have filter sock in system to capture debris as well.
BTW...water parameters before and after my last water change are on par..
Nitrate = 0.0 - using new Hanna High range test kit
Phosphate = 0.03 - using Hanna Low Range Phosphorous test kit
Tank is 10 months old, never had any algae issues. Run UV as well.