jessezm
Well-Known Member
Hey folks! Lately I've noticed two acro colonies in my tank looking a little unhappy on their undersides. I don't know whether this is related to shading, or it's a pest that I need to get on right away, or if it's just general weird unexplained acro stuff that happens from time to time.
I have over 50 colonies of acros, some up to about 6" across (but most small to medium sized), and only two are currently exhibiting this: a PC Rainbow, and a Teal Blue Stag. I clipped off a bit of each and took some pics, then did a Bayer treatment.
Granted, Bayer makes it hard to see stuff since it's cloudy, but I did not see any bugs come off these pieces or any leftover in the dip...
Can you all take a look at the pic below and let me know what you see? The sunny side of the corals are doing fine with good polyp extension and color.
other details: I run my Alk at 8.5 and about three weeks ago had a spike to about 10.5 or 11, and let it fall naturally over a few days (calcium reactor was reset too low for a bit after refilling). Normally I wouldn't worry about that but I did have a Blue Hoeksemai lose some tissue on one tip about 10 days later. I cut off the dead part and glued the cut and it's already encrusting over it.
Other than that, the only thing I can think of besides a pest is shading. Nitrates are 10 ppm and Phosphates 0.09 ppm (been fluctuating between .05 and .14 lately, and I am not using any GFO).
Maintenance/system details:
Water changes are 20% every 2 weeks with RC, temp is 79, ph between 8.1 and 8.3 daily. I run activated carbon and a 55w UV, system is 300g total. Lighting is LED/T5. I feed frozen mysis and spirulina brine to the fish twice a day, and add a few ounces of Red Sea Reef Energy A and B as well as acropower after feeding every morning. Twice a week I do reef roids at night.
I have over 50 colonies of acros, some up to about 6" across (but most small to medium sized), and only two are currently exhibiting this: a PC Rainbow, and a Teal Blue Stag. I clipped off a bit of each and took some pics, then did a Bayer treatment.
Granted, Bayer makes it hard to see stuff since it's cloudy, but I did not see any bugs come off these pieces or any leftover in the dip...
Can you all take a look at the pic below and let me know what you see? The sunny side of the corals are doing fine with good polyp extension and color.
other details: I run my Alk at 8.5 and about three weeks ago had a spike to about 10.5 or 11, and let it fall naturally over a few days (calcium reactor was reset too low for a bit after refilling). Normally I wouldn't worry about that but I did have a Blue Hoeksemai lose some tissue on one tip about 10 days later. I cut off the dead part and glued the cut and it's already encrusting over it.
Other than that, the only thing I can think of besides a pest is shading. Nitrates are 10 ppm and Phosphates 0.09 ppm (been fluctuating between .05 and .14 lately, and I am not using any GFO).
Maintenance/system details:
Water changes are 20% every 2 weeks with RC, temp is 79, ph between 8.1 and 8.3 daily. I run activated carbon and a 55w UV, system is 300g total. Lighting is LED/T5. I feed frozen mysis and spirulina brine to the fish twice a day, and add a few ounces of Red Sea Reef Energy A and B as well as acropower after feeding every morning. Twice a week I do reef roids at night.
