OK guys, I have a problem and I'm looking for ideas here...
For the past few days, none of my acros are showing polyps (day or night). This is highly unusual, especially at night. Clams all look great with mantles extended.
Water test results as follows...
Temp 80-82Ã"šÃ‚°f
Salinity 34-35 PPT (refractometer)
Alkalinity 4 mEq/L (LaMotte)
Ca not tested
pH 8.00-8.15 (PinPoint)
ammonia undetectable (Seatest)
nitrate undetectable (Seatest)
Tank setup is 120g AGA RR w/30g sump, dual 400w Iwasaki 6500Ã"šÃ‚°k halides and dual 110w URI actinic 03 VHOs. Lots of turbulent water flow provided by a Mag9.5 for sump return via AGA returns, Mag7 feeding a Ã"šÃ‚¾" Seaswirl, and 4-Maxijet 1200 powerheads on a Red Sea Wavemaster Pro. Deep sandbed (5-6") and roughly 40 lbs. of live rock.
At first I thought perhaps the thermometer was off. I lowered the heater reducing the temperature swing from 82-84Ã"šÃ‚° to what I posted above. Also began running carbon aggressively via a HOT Magnum, and floated a polyfilter. No change.
Any ideas or thoughts of what I should look for or try next?
TIA
Just an update...calcium is ~ 557 mg/L (LaMotte) and phosphate is ~ 0.02 mg/L (Hach).
For the past few days, none of my acros are showing polyps (day or night). This is highly unusual, especially at night. Clams all look great with mantles extended.
Water test results as follows...
Temp 80-82Ã"šÃ‚°f
Salinity 34-35 PPT (refractometer)
Alkalinity 4 mEq/L (LaMotte)
Ca not tested
pH 8.00-8.15 (PinPoint)
ammonia undetectable (Seatest)
nitrate undetectable (Seatest)
Tank setup is 120g AGA RR w/30g sump, dual 400w Iwasaki 6500Ã"šÃ‚°k halides and dual 110w URI actinic 03 VHOs. Lots of turbulent water flow provided by a Mag9.5 for sump return via AGA returns, Mag7 feeding a Ã"šÃ‚¾" Seaswirl, and 4-Maxijet 1200 powerheads on a Red Sea Wavemaster Pro. Deep sandbed (5-6") and roughly 40 lbs. of live rock.
At first I thought perhaps the thermometer was off. I lowered the heater reducing the temperature swing from 82-84Ã"šÃ‚° to what I posted above. Also began running carbon aggressively via a HOT Magnum, and floated a polyfilter. No change.
Any ideas or thoughts of what I should look for or try next?
TIA
Just an update...calcium is ~ 557 mg/L (LaMotte) and phosphate is ~ 0.02 mg/L (Hach).
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