tetraodon Posted January 22, 2015 Share Posted January 22, 2015 ive had a frag of ORA frogskin acropora for about 6 months now, its been doing great, recently i noticed that a couple areas seam to have discolored or eroded, the two branches on the left are a really bright green, its the edge on the right im eye balling, i did have my RO filters need replacement, and so some phosphate got into my system, i replaced my filters and such, so im running down the list of possibilities, could this be a brown out? http://s1282.photobucket.com/user/tetraodon1/media/Mobile%20Uploads/20150121_220822_zpsbc171fe8.jpg.html'> Link to comment
Bingo1213 Posted January 22, 2015 Share Posted January 22, 2015 It is very possible that it is the phosphates. They seem to have a way of screwing up SPS corals for some time even after they are eliminated. How high did they get? Also do you currently run GFO in your system? Link to comment
tetraodon Posted January 22, 2015 Author Share Posted January 22, 2015 It is very possible that it is the phosphates. They seem to have a way of screwing up SPS corals for some time even after they are eliminated. How high did they get? Also do you currently run GFO in your system? the only phosphate test kit i had was an api and it maxed at .25, just to be safe i tested my RO water which read zero, and i do not run GFO in my system the only other recent event i can think of is i messed with my light a little bit, i turned it down by 25% Link to comment
Bingo1213 Posted January 22, 2015 Share Posted January 22, 2015 .25 is pretty high my guess is that is the cause. Maybe consider running GFO, this could help because I am willing to bet you still have phosphates, they are just lower than .25. Any phosphates will cause sps to brown out! May I ask why you cut your lighting back? Link to comment
tetraodon Posted January 23, 2015 Author Share Posted January 23, 2015 what is GFO? and i messed with it because i wanted to see if i could get the frogskin pattern back on my acro Link to comment
GHill762 Posted January 23, 2015 Share Posted January 23, 2015 Granular feric oxide Basically lumps of rust dust Link to comment
tetraodon Posted January 23, 2015 Author Share Posted January 23, 2015 Granular feric oxide Basically lumps of rust dust that doesnt sound like something i would want to put in my tank Link to comment
Bingo1213 Posted January 23, 2015 Share Posted January 23, 2015 that doesnt sound like something i would want to put in my tank It is, you ideally run it in a reactor for efficiency but you can put it in a media bag in a sump or HOB filter. The purpose of it is to absorb phosphates, you change it out about every two months. I use just the BRS brand. It really works great with no negative effects, some say it can lead to pinched mantle in clams but I have a 6 inch long derasa that has been in my system for over a year with not problems at all. Link to comment
GHill762 Posted January 23, 2015 Share Posted January 23, 2015 that doesnt sound like something i would want to put in my tank it's perfectly safe, it's to absorb phosphate, lots of people use it.. there's a few other products that do the same thing though, I prefer the aluminum oxide version (such as phosguard from seachem). apparently there is some link between gfo and the protozoan that causes pinched mantle on clams - or at least that's the theory. I also prefer phosguard because it's easier to use in a media bag, whereas gfo will clump and bind. Link to comment
tetraodon Posted January 23, 2015 Author Share Posted January 23, 2015 Ill keep that in mind, I checked my acro this morning and it SEAMS to have slightly better color, ill keep an eye on it as well as pick up some better test kits Link to comment
Bingo1213 Posted January 23, 2015 Share Posted January 23, 2015 it's perfectly safe, it's to absorb phosphate, lots of people use it.. there's a few other products that do the same thing though, I prefer the aluminum oxide version (such as phosguard from seachem). apparently there is some link between gfo and the protozoan that causes pinched mantle on clams - or at least that's the theory. I also prefer phosguard because it's easier to use in a media bag, whereas gfo will clump and bind. I have heard this about clams too but I have no issues with my clam in my tank. He is growing like crazy and is very happy. He even survived pyramid snails (thanks to my melenarus wrasse!). Link to comment
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