DevilDuck Posted February 26, 2021 Share Posted February 26, 2021 I have a frag plug of zoas that have been in the tank for 2 months. Suddenly last week they stopped opening. There are 3 other zoa frags nearby that are acting normally. Parameters: Tested on 02/21/2021 alk: 7.2 dkh cal: 400 ppm mg: 1500 ppm salinity: 1.025 sg I've tried the following: Moving to lower flow / low light area 5 min dip in iodine 10 min dip in Revive (twice) 3 min freshwater dip 2-min dip in hydrogen peroxide Moving to high flow location No obvious pests came out from the Revive and freshwater dips, just copepods. I don't see any signs of Zoa Pox. Any suggestions? Quote Link to comment
Christopher Marks Posted February 26, 2021 Share Posted February 26, 2021 12 minutes ago, DevilDuck said: Any suggestions? Move to a higher flow area, then leave them alone for a full week and see how they do. They can be fussy at times, but you've certainly ruled out pests at this point. I would let it rest and see if they open up after all that. 2 Quote Link to comment
DevilDuck Posted March 1, 2021 Author Share Posted March 1, 2021 Some glimmers of hope! A few polyps starting to emerge from their torpor! 2 Quote Link to comment
mcarroll Posted March 1, 2021 Share Posted March 1, 2021 On 2/26/2021 at 1:10 PM, DevilDuck said: Tested on 02/21/2021 alk: 7.2 dkh cal: 400 ppm mg: 1500 ppm salinity: 1.025 sg Mg is very high and alk is very low considering the s.g. you have posted. Is this normal? (Is it how the salt mixes up?) What are your NO3 and PO4 levels? On 2/26/2021 at 1:10 PM, DevilDuck said: Moving to lower flow / low light area 5 min dip in iodine 10 min dip in Revive (twice) 3 min freshwater dip 2-min dip in hydrogen peroxide Moving to high flow location Unless there's something obviously wrong with the location, moving a coral is usually more stress than help....so I don't think any of that probably helped. 1 Quote Link to comment
DevilDuck Posted March 1, 2021 Author Share Posted March 1, 2021 2 hours ago, mcarroll said: Mg is very high and alk is very low considering the s.g. you have posted. Is this normal? (Is it how the salt mixes up?) What are your NO3 and PO4 levels? @mcarroll I've been struggling with these levels. I use Fritz RPM which per the box mixes up with the following params: Salinity: 35 ppt (1.0264 sg) Calcium: 400-450 ppm Magnesium: 1300-1400 ppm Alkalinity: 8.0-9.0 dKH Strontium: 9 ppm Potassium: 400 ppm I do about 15-20 percent water changes weekly and been dosing All-For-Reef to increase the alkalinity, ideally I want to maintain about 8dKH. For some reason the alkalinity is dropping faster than Cal and much faster than Mg. I lose about 0.2 dKH a day in alkalinity. My NO3 is between 5 and 10 ppm, PO4 is about .07 ppm. Quote Unless there's something obviously wrong with the location, moving a coral is usually more stress than help....so I don't think any of that probably helped. Quote Link to comment
mcarroll Posted March 1, 2021 Share Posted March 1, 2021 10 hours ago, DevilDuck said: I use Fritz RPM which per the box mixes up with the following params: Salinity: 35 ppt (1.0264 sg) Calcium: 400-450 ppm Magnesium: 1300-1400 ppm Alkalinity: 8.0-9.0 dKH Strontium: 9 ppm Potassium: 400 ppm Have you verified these numbers on a batch that you've mixed? If not, I'd do that at least once. Also seems like they spec a relatively high s.g. in order to achieve those numbers....so would be interesting to see what you get at your tank's s.g. (assuming it's different). 10 hours ago, DevilDuck said: been dosing All-For-Reef to increase the alkalinity, ideally I want to maintain about 8dKH. For some reason the alkalinity is dropping faster than Cal and much faster than Mg. I lose about 0.2 dKH a day in alkalinity. Seems like this isn't working correctly for some reason then – IMO you'll have to switch gears and use an alternative until you get that figured out. You should switch sooner than later IMO. Seems like both items could be a problem. Also, like I think Christopher said earlier, zoa's are just moody....my least favorite coral for that reason. Nothing with your numbers is *that wrong* (yet) but possibly off enough to put your newest addition into "a mood". IMO, work out the minor discrepancies above and ignore the Zoa's. I bet they're perked up by the time your water is sorted out. 👍 1 Quote Link to comment
DevilDuck Posted March 1, 2021 Author Share Posted March 1, 2021 The majority of the polyps opened up today. Guess they were just being moody. Closing this thread, continuing the water issue in my main journal: 1 Quote Link to comment
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