MantaFan Posted October 13, 2015 Share Posted October 13, 2015 Hey everyone... It's been a long time since I posted, but I need some help. I did a water change before going on vacation for two weeks. When I got back everything was fine. I did another water changeand left town for another week. When I got back I found one of the acros that came with the small frag had died. Now my green montipora that was growing like a champ is dying from the inside out. Temp, salinity, calcium, dKH all look good. I'm planning to do another water change ASAP, but I don't know what's going on here. All other corals and fish look great and I haven't introduced any specimens in about six months. Pics attached... any ideas? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
jolt Posted October 13, 2015 Share Posted October 13, 2015 Who was taking care of the tank for those two weeks? Is it possible something died like a snail or shrimp? Or perhaps something accidentally overfed or something spilled into the tank? How big were the water changes? Quote Link to comment Share on other sites More sharing options...
MantaFan Posted October 13, 2015 Author Share Posted October 13, 2015 A neighbor was feeding for 2 weeks then my wife. Over feed is possible, but she put in 1 pinch of NLS pellets once a day. Water change is 20%. I've got tons of snails and a few crabs. No shrimp. These corals made it through a few fish deaths in the past, so I don't think it's an ammonia spike. I have some bacteria supplements I can add, but my system is a year old so it should be able to handle some invert decay. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Juiceman Posted October 13, 2015 Share Posted October 13, 2015 Test Po4 and Nitrate, could be an underlying problem you don't know about. Quote Link to comment Share on other sites More sharing options...
FarmerTy Posted October 13, 2015 Share Posted October 13, 2015 I'd do a bigger water change. It definitely wouldn't hurt until you find out what's going on. +1 to Juiceman, check your nutrients, nitrates and phosphates... and Mg if possible. Quote Link to comment Share on other sites More sharing options...
MantaFan Posted October 13, 2015 Author Share Posted October 13, 2015 I do have elevated Po4 and been fighting a bad GHA problem for months now. I've tested my RO water and replacement salt water and changed filters a few times and all read 0.0... The only input I can think of is the NLS pellets. Are they a bad source of phosphates? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
FarmerTy Posted October 13, 2015 Share Posted October 13, 2015 My tank gets fed 3x/day with the NLS pellets MantaFan. I'm sure its a source but not overwhelming. What are you using for phosphate removal? Quote Link to comment Share on other sites More sharing options...
MantaFan Posted October 13, 2015 Author Share Posted October 13, 2015 BRS GFO... I change 1 cup every 4 weeks. It's not the high capacity GFO. This is my week to change that out, so I'll do that tonight Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Neon Reefer Posted October 13, 2015 Share Posted October 13, 2015 Can't say about the Acro, if it's a sensitive type could be the trates and phates, but as far as the Monti being the white spot is in a low area near the center it could be detritus settling on it there Quote Link to comment Share on other sites More sharing options...
BBMarlin Posted October 14, 2015 Share Posted October 14, 2015 Is it possible the tank got hot while you were away? Quote Link to comment Share on other sites More sharing options...
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