Rocks Reef Posted March 14, 2017 Share Posted March 14, 2017 Not sure why....But my acro is browning. Link to comment Share on other sites More sharing options...
Rocks Reef Posted March 14, 2017 Author Share Posted March 14, 2017 It has great growth...It was a single stick a month ago Link to comment Share on other sites More sharing options...
Isaac Posted March 14, 2017 Share Posted March 14, 2017 what do your water params look like? Link to comment Share on other sites More sharing options...
Sascha D. Posted March 14, 2017 Share Posted March 14, 2017 IME browning is nearly always due to water quality, but it could also be insufficient lighting or lighting type. I experimented with millepora under straight 6,500K and found that they had good growth but turned brown. I believe it due to an supersaturation of zooxanthellae produced under that lighting type. Link to comment Share on other sites More sharing options...
jestep Posted March 14, 2017 Share Posted March 14, 2017 Either too low of light, or excess NO3 or PO4. Link to comment Share on other sites More sharing options...
Rocks Reef Posted March 14, 2017 Author Share Posted March 14, 2017 Directly under 250W 14k twinarc. Photo was under just the 10k/actinic supplement fixture. Will check parameters after work. Red Sea PO4 is crap tho, need a Hanna! Any have one I could borrow? Or does any local LFS sell them? Link to comment Share on other sites More sharing options...
Sascha D. Posted March 14, 2017 Share Posted March 14, 2017 26 minutes ago, Rocks Reef said: Directly under 250W 14k twinarc. Photo was under just the 10k/actinic supplement fixture. Will check parameters after work. Red Sea PO4 is crap tho, need a Hanna! Any have one I could borrow? Or does any local LFS sell them? If it's under a 250W MH then it's probably not the light, but it's possible that you're giving it too much light. What is your photo period? PO4 tests are notoriously unreliable and I wouldn't bother with it. If I suspected a water quality issue, then I would just take action to correct both NO3 and PO4 under the assumption that it exists. Link to comment Share on other sites More sharing options...
AlexMorsePremium Posted March 14, 2017 Share Posted March 14, 2017 Austin Aqua Dome has Hanna checkers Link to comment Share on other sites More sharing options...
Reburn Posted March 15, 2017 Share Posted March 15, 2017 IMO Too high nutrients and/or not enough blue light. Link to comment Share on other sites More sharing options...
Rocks Reef Posted March 15, 2017 Author Share Posted March 15, 2017 Thank you all for your comments! Picked up a used BRS dual chamber reactor for $5!!!! Yup, $5!! Also ordered two reef bright actinic bars.... We will see how it goes. Link to comment Share on other sites More sharing options...
Sascha D. Posted March 15, 2017 Share Posted March 15, 2017 1 hour ago, Rocks Reef said: Thank you all for your comments! Picked up a used BRS dual chamber reactor for $5!!!! Yup, $5!! Also ordered two reef bright actinic bars.... We will see how it goes. Jump the gun much? Link to comment Share on other sites More sharing options...
Rocks Reef Posted March 15, 2017 Author Share Posted March 15, 2017 Always! Life is too short to have brown across...lol Link to comment Share on other sites More sharing options...
Timfish Posted March 15, 2017 Share Posted March 15, 2017 If you had that kind of growth rate in a month I'd say you have an ideal amount of zooxanthellae. In our quest for colors it's very rarely passed on to new aquarists that brown is the healthiest color a coral can have. (Of course there's other causes of browning besides zooxantheallae.) Not having to make fluoorescing or chromo proteins to protect the zooxantheallae means there's more energy the coral can put into growing. As you add lights to bring out colors be very patient, it takes a coral weeks to months to make new fluorescing and chromo proteins. If colors show up as son as you make a change to the spectrum then the colors were already there but the ratio of color spectrums wasn't conducive to showing them. Also, a lot of problems are blamed on PO4. Look at the distribution of PO4 in the oceans and you'll see lowest on reefs and reefs may see levels as high as 2.0 mg/l. And PO4 may be the reason your frag grew so fast. Phosphate is a limiting nutrient for a coral to use nitrogen and there is a direct corelation bewteen coral growth and increasing PO4 at levels normally found on reefs. Link to comment Share on other sites More sharing options...
Sascha D. Posted March 15, 2017 Share Posted March 15, 2017 Corals in the ocean are brown. They get too much 6,500K spectrum. Add more 400nm to the sun! It's funny, but all of my corals were brown in 2000 and that was considered successful. I had to order the ones I had online because the LFS in Seattle didn't even carry corals! Here we are 17 years and a few versions of Photoshop later and brown is unacceptable by most hobbyists standards. Link to comment Share on other sites More sharing options...
Timfish Posted March 15, 2017 Share Posted March 15, 2017 8 hours ago, Sascha D. said: . . . They get too much 6,500K spectrum. Add more 400nm to the sun! . . . I hear ya! Just think how many more people would be interested in saving the reefs if they were prettier! Link to comment Share on other sites More sharing options...
HarleyGuy Posted April 7, 2017 Share Posted April 7, 2017 On 3/15/2017 at 6:06 PM, Timfish said: I hear ya! Just think how many more people would be interested in saving the reefs if they were prettier! That is sad but true.. However I'd be just as happy to see a lot more brown reefs versus the bleached out bone-yard reefs that seem to be more common now... Link to comment Share on other sites More sharing options...
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