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04/02/2010, 11:29 PM | #1 |
Registered Member
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Pics. SPS No polyp extension, LPS issues also
3 days ago I came hoem to atank with all sps having no polyps extension and one LPS, echinopora mammiformis with many stinging tentacles out. See pic. At this time I measured my alk to be 5.6 dkh. two days before my alk was at 11.2 . I believe alk swing is the culprit. I have been unable to increase alk since despite additing up to 100ml/ day of two part (recipe 1) to a 70 gallon tank. Anyone ever see a coral behave like this? Tank is has very low nutrients.
P04= 0.04 ppm No3= below detectable levels Alk=5.6 dkh Ca=420 ppm Mg=1340 ppm |
04/03/2010, 08:08 AM | #2 |
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Join Date: Apr 2008
Location: St. Charles, Mo.
Posts: 1,369
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Pretty sure it is the alk swing. I added too much GFO and dropped mine from 9 to 6, SPS were not happy for about a month or better after. Do you know what caused the sudden drop? Did you add anything?
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04/03/2010, 08:11 AM | #3 |
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Join Date: Feb 2008
Location: Brick
Posts: 985
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same boat as you were. my alk swing was way less of a change then yours but if yours was at 5.6 thats real bad. Relle bad effects take place when it goes under 7. My swing lasted for 4 months and the corals still haven't recovered so i started thinking it was something in the water. After getting your levels back to normal get a heathy frag and see if that goes down south. So far my frag is showing excellent polyp extension and if it starts growing im gonna throw out all the affected coral and start over. Its just the risk we take when we try to control stuff that mother nature is responsible for.
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04/03/2010, 04:56 PM | #4 |
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Join Date: Jun 2008
Location: denison texas
Posts: 620
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Add some dkh buffer to get it back to normal levels. Same thing happened to me last year. I added it all in one day, since the corals are still shocked from the excessively low dkh. I would get it back up fairly quickly though.
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215g display, 80g melev sump, 60g melev frag tank, 2x mp40w's, mag 12 return pump, 3 modded 6025, 1 6065, koralia magnum 8, 2x250 phoenix hqi's, 1x250 phoenix SE, 2x160w actinics, MRC dual chamber calcium reactor with Ph controller, MR1 phosban reactor, Red sea ozonizer 200mg/hr with ORP controller, royal exclusive alpha cone 250 skimmer, reefkeeper elite on its way 80+ species of SPS and counting Current Tank Info: 215g display, 60g frag tank, 80g sump |
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