Ernie C
Well-Known Member
Hi all. Upgraded from a Reefer 350 70 display to a waterbox 180, 140 display. Had original tank mixed reef mostly sps under three hydra 26hds. New tank has 3 hydra36 HD’s. I loaded the same lighting schedule from the 26s. The corals Seem good but I have a 20 year old bubble that seems to not like the new lights. He opens well in the early hours. Closes up some during peak and then spews brown poo in the evenings. colors don’t look like they are going pale though. He was very high in the older tank and right under the hydra. He has more distance from the current light in the new tank. Also had some zoanthids do the same poo expulsion and now a chalice both were on the bottom glass. I’m thinking it’s them expelling zooxanthellae but not sure. I dropped the light intensity of the light over the bubble Coral to about 40w about three days ago. The other two on the sides are at 61w. Tank has been running for a little over two weeks. I have an apogee par meter. I’ll have to take new readings but last I checked it was reading around 250 par over the bubble and about 150 at the tank bottom. Tank parameters have been stable. Sal 1.025, alk 10, cal 425, temp 77, no3 4ppm, po4 .08ppm, mag 1400. I’ll be retesting water tonight so will update Parma’s if any different. Any thoughts?
