Hi all,
A shot in the dark here to see if someone has had a similar issue. Tank is two years old and Acropora have been happy overall. Until...about two weeks ago, I started noticing less PE and color. Sent an ICP test last week, results today all look good except Boron and Iodine are low. The tank has always had zero NO3 and PO4. Immediately, I think "raise the levels". So, I have been adding NO3 over the past week and levels are around 2ppm. PO4 is still at zero, but feeding pellets heavily in effort to raise that as well. Have also ordered AF PO4+. The tank is pretty stable with little fluctuation of anything measurable. One would think the low nutrient levels might be the culprit, but things have been fine for quite a while as a ULNS. Any thoughts are appreciated!
Tank: 100g bare bottom, about 15g in the sump
Lighting: hasn't changed - 4 Hydra 32HD (saxxby), 4 T5 blue plus and actinic at 40%
Dosing:
Part C
Alk
Ca
Mg
RedSea AB+ (20ml per week, very low dose)
RedSea Iodine (two drops per week...need to increase that based upon ICP)
Today:
Salinity 35
Temp 78-80 (daily)
Alk 8.53
Ca 456
Mg 1327
NO3 1.4
PO4 0
Long sweepers and closed polyps
JF Frankie pale and almost burned tips
Miss Scarlett very pale, no PE, long sweepers and seemingly burned tips
A shot in the dark here to see if someone has had a similar issue. Tank is two years old and Acropora have been happy overall. Until...about two weeks ago, I started noticing less PE and color. Sent an ICP test last week, results today all look good except Boron and Iodine are low. The tank has always had zero NO3 and PO4. Immediately, I think "raise the levels". So, I have been adding NO3 over the past week and levels are around 2ppm. PO4 is still at zero, but feeding pellets heavily in effort to raise that as well. Have also ordered AF PO4+. The tank is pretty stable with little fluctuation of anything measurable. One would think the low nutrient levels might be the culprit, but things have been fine for quite a while as a ULNS. Any thoughts are appreciated!
Tank: 100g bare bottom, about 15g in the sump
Lighting: hasn't changed - 4 Hydra 32HD (saxxby), 4 T5 blue plus and actinic at 40%
Dosing:
Part C
Alk
Ca
Mg
RedSea AB+ (20ml per week, very low dose)
RedSea Iodine (two drops per week...need to increase that based upon ICP)
Today:
Salinity 35
Temp 78-80 (daily)
Alk 8.53
Ca 456
Mg 1327
NO3 1.4
PO4 0
Long sweepers and closed polyps
JF Frankie pale and almost burned tips
Miss Scarlett very pale, no PE, long sweepers and seemingly burned tips