SRC Member straydum Posted May 2, 2009 SRC Member Share Posted May 2, 2009 every LPS that i get seem to be bleaching, except my bubble. the most obvious one is my hammer and brain. nitrate: 10ppm nitrite 0.0ppm alkalinity (dkh): 9 pH: 8.4 ammonia: 0.00ppm sg: 1.024 ca: 450 mg: >1400 temp: 26°C i'm using 4x24w T5 with API tubes (1 month old). does anyone know why LPS bleach? Quote Link to comment Share on other sites More sharing options...
Senior Reefer yikai Posted May 2, 2009 Senior Reefer Share Posted May 2, 2009 water parameters look ok... what are ur lighting hours? Quote Link to comment Share on other sites More sharing options...
SRC Member straydum Posted May 2, 2009 Author SRC Member Share Posted May 2, 2009 around 8-9 to 5-6. is that too little? Quote Link to comment Share on other sites More sharing options...
Senior Reefer yikai Posted May 2, 2009 Senior Reefer Share Posted May 2, 2009 no la that should be fine. around 8-10 hours sufficient... hmm i dunno why ur corals bleaching. usually bleach becoz of insufficient or extreme lighting and/or high heat. did u check ur PO4? Quote Link to comment Share on other sites More sharing options...
SRC Member kimwailee Posted May 2, 2009 SRC Member Share Posted May 2, 2009 Is this a new tank ? Using NSW ? Quote Link to comment Share on other sites More sharing options...
SRC Member reeftask Posted May 2, 2009 SRC Member Share Posted May 2, 2009 sometimes it is really hard to tell what happened from your little post. We need to know more about your measuring kits' age, brand, etc... It could be the flow of water. If the tank is too small, alot of things will swing high and low, eg: temperature,... BEST with pics of your tank. We need more info: tank age, water age,... It could be new tank syndrome too. Quote Link to comment Share on other sites More sharing options...
SRC Member TayHongSiang Posted May 4, 2009 SRC Member Share Posted May 4, 2009 every LPS that i get seem to be bleaching, except my bubble. the most obvious one is my hammer and brain. nitrate: 10ppm nitrite 0.0ppm alkalinity (dkh): 9 pH: 8.4 ammonia: 0.00ppm sg: 1.024 ca: 450 mg: >1400 temp: 26°C i'm using 4x24w T5 with API tubes (1 month old). does anyone know why LPS bleach? Your lighting too strong liao....2 x T5 is good enough if you are using ATI tubes...I believe yr tank height is 1ft plus, right? Coz i bought a 4 x 24W fixture from a brother here last week and i switch on all 4 tubes for 8 hrs and when i come home, i saw my LPS corals like brain, echinata and acans not too happy...not opening up as usual and they vomit some stuffs...sign of stress. So, when i switch on only 2 tubes, they are much better and expand like wat they usually do. LPS like hammer, frogspawn and octo can tahan 4x 24w...thats y, these you can place right on top. But for blasto, prata, cynarina, brain, acans and echinata...no need strong lights. Quote Link to comment Share on other sites More sharing options...
SRC Member reeftask Posted May 17, 2009 SRC Member Share Posted May 17, 2009 Your lighting too strong liao....2 x T5 is good enough if you are using ATI tubes...I believe yr tank height is 1ft plus, right? Coz i bought a 4 x 24W fixture from a brother here last week and i switch on all 4 tubes for 8 hrs and when i come home, i saw my LPS corals like brain, echinata and acans not too happy...not opening up as usual and they vomit some stuffs...sign of stress. So, when i switch on only 2 tubes, they are much better and expand like wat they usually do. LPS like hammer, frogspawn and octo can tahan 4x 24w...thats y, these you can place right on top. But for blasto, prata, cynarina, brain, acans and echinata...no need strong lights. huh? 1 ft? I think this bro words are very correct. You can also lift up your lights a lot higher to reduce its intensity. Quote Link to comment Share on other sites More sharing options...
boxerz Posted May 19, 2009 Share Posted May 19, 2009 no offence but I have to disagree with a couple of statements here. First of all, ATI tubes does not make the T5s strong, it is the combination of tubes, ballast and fixture. Next, you cannot tell the intensity of light without using a par/lux meter. How long your coral were under the lights before they bleach. Fast bleaching may be due to strong lights while long term bleaching may be due to lack of light. Ans there are also other factors that can trigger bleaching, light is just one of them. Quote Link to comment Share on other sites More sharing options...
boxerz Posted May 19, 2009 Share Posted May 19, 2009 what is the size and depth of your tank ? Quote Link to comment Share on other sites More sharing options...
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