Emhriverdale August 8, 2021 Share August 8, 2021 (edited) Howdy! I've been broadcast feeding with Reef Roids a few times a week. Yesterday I did my first target feeding yesterday. Several SPS/LPS started bleaching (I think) within hours. Palys and Zoas look happy. I have a monti that has been lovely and slowly growing for months, turning white as we speak. Did a 15% WC 48 hours prior to feeding, getting ready to do another now. I tried turkey basting, no change. Only other system issue was a heater which I forgot to plug in after WC overnight - but temp only dropped to 78. My unkillable gramma who, a month ago recovered from a bad injury on his cheek, had popeye on the same side - I'm assuming latent infection as I didn't treat. It's well recovered now and he's eating like a pro. Parameters just prior to the feeding - 1.025/80F - pH8.0/Nitrate 5/Phos .1/Ca 500/Alk 10/Mg 1280/Ammonia 0 - not yet chasing trying to dose, cause I listen to my WAMAS friends. Test values unchanged just now after bleaching started. I have 2 black box LEDs and 1 XR15. Coral in the picture has been in the same place for months. Only change was the target feeding. Could the feeding have stressed? Could this be a growth spurt from being fed for the first time? Thanks for the assistance! Edit: 55g DT - 28g sump w/ fuge, no skimmer. Edited August 8, 2021 by Emhriverdale Link to comment Share on other sites More sharing options...
DFR August 25, 2021 Share August 25, 2021 I wouldn’t suspect the feeding as the cause unless there was a noticeable nutrient spike (which doesn’t seem to be the case). The lighting seems kind of excessive for a standard 55g. Do you run them all at 100%? If you haven’t already, I’d perform a PAR mapping on the tank. As it is only the stony corals, it could also be temp related. I’ve lost sticks that we’re doing well for a long time, following a sizable water change that was not the same temp as my tank. Link to comment Share on other sites More sharing options...
Emhriverdale August 25, 2021 Author Share August 25, 2021 Thanks for the fantastic guidance fellow Riverdalian! Upon further research, directly plopping a paste of Reef Roids on them is NOT the ideal method for target feeding. My nutrients spiked subsequently, but things are settling down - and I have most definitely learned my lesson! Link to comment Share on other sites More sharing options...
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