This is the part of the hobby that is so intriguing and frustrating at the same time.
Everything and nothing makes sense.
Here is some more information per some questions asked......and thank you all for your involvement!
Lighting unchanged for months
6-7 weeks ago 2nd gyre added. Flow everywhere!
2 weeks ago installed larger return pump. Pushing 1600-1700 gph vs 1000 gph.
Used rowaphos in a media bag for 5 weeks (end of September thru all of October). Phosphate went from .15 to .02. Removed and has not been in since and staying at 0 on Hanna ULR.
Used Vibrant to kill off GHA in sept and oct. not used since.
UV runs 24/7. Perhaps an “A ha!) I removed the UV early November as I cleaned it and waited for my new return pump and used the old return pump for the UV as the Sicce pump I have is noisy and is a bear to get started. That’s about 6 weeks ago when the cyano first started showing up.
Been adding Seachem matrix/denitrate to low flow area of the sump. 6 liters in place now.
Water temp is averaging 1 degree lower the past 45 days.
Note: I track all this on a spreadsheet so that’s how I know the dates and readings, etc.
Everything is growing in the tank. No corals look bad or not growing.
I’ll see if you all have any other thoughts now.
Also, I think it may be diatoms on the sand as they only show up when the lights are on. ???
The rocks with cyano were removed and cleaned with tank water and a toothbrush 2 days ago.
Everything and nothing makes sense.
Here is some more information per some questions asked......and thank you all for your involvement!
Lighting unchanged for months
6-7 weeks ago 2nd gyre added. Flow everywhere!
2 weeks ago installed larger return pump. Pushing 1600-1700 gph vs 1000 gph.
Used rowaphos in a media bag for 5 weeks (end of September thru all of October). Phosphate went from .15 to .02. Removed and has not been in since and staying at 0 on Hanna ULR.
Used Vibrant to kill off GHA in sept and oct. not used since.
UV runs 24/7. Perhaps an “A ha!) I removed the UV early November as I cleaned it and waited for my new return pump and used the old return pump for the UV as the Sicce pump I have is noisy and is a bear to get started. That’s about 6 weeks ago when the cyano first started showing up.
Been adding Seachem matrix/denitrate to low flow area of the sump. 6 liters in place now.
Water temp is averaging 1 degree lower the past 45 days.
Note: I track all this on a spreadsheet so that’s how I know the dates and readings, etc.
Everything is growing in the tank. No corals look bad or not growing.
I’ll see if you all have any other thoughts now.
Also, I think it may be diatoms on the sand as they only show up when the lights are on. ???
The rocks with cyano were removed and cleaned with tank water and a toothbrush 2 days ago.