Recently, everything was going very well in my tank with great PE and improving color. Sometime last week I woke up and coral on the right side of the tank started looking pretty bad. My coral with the best PE now is very tan, no PE and has slight recession on base. I had a super man monti frag on the right side of the tank RTN and is pretty much dead now while the one that is on the left side of the tank is unchanged. The Acros in the middle of my tank are unaffected and have normal PE.
The only thing I can think of is I just switched to autodosing two days ago so I was hand dosing at the time this happened and perhaps I poured the alk portion too quickly into the tank and it could have burned some of the coral on that side? For reference this is a 20 gallon long with an MP10. I used to dose in front of the vortech and that is where the affected corals are located.
One of my acros still has STN going on even though the others have mostly stopped. Will this stop on its own or will this coral eventually stop and recover?
Parameters:
Salinity - 1.026
Alk - ~7.7 (salifert)
Calc - ~480 (trying to bring this down) (salifert)
Mag - 1480 (salifert)
Phosphate - .04-.05 (Hanna phosphorus)
The only thing I can think of is I just switched to autodosing two days ago so I was hand dosing at the time this happened and perhaps I poured the alk portion too quickly into the tank and it could have burned some of the coral on that side? For reference this is a 20 gallon long with an MP10. I used to dose in front of the vortech and that is where the affected corals are located.
One of my acros still has STN going on even though the others have mostly stopped. Will this stop on its own or will this coral eventually stop and recover?
Parameters:
Salinity - 1.026
Alk - ~7.7 (salifert)
Calc - ~480 (trying to bring this down) (salifert)
Mag - 1480 (salifert)
Phosphate - .04-.05 (Hanna phosphorus)
