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- Jan 13, 2017
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My 1 year old tank was doing better then my expectations so about 8 months in I added about a dozen SPS frags, a few acros, montis etc. Placed them throughout the tank based on their requirements (light/flow) , all were encrusting and doing fine for several months. The healthy photos were taken in late APL, the others were taken today, just 8-9 weeks apart. I believe my system is pretty stable, the test results are shown below from 3 weeks before the 1st set of photos and today. You can see they are deteriorating quickly, losing color and tissue, turning brown.
Back in late MAY the temperature in the tank moved from 78 to about 82 for 7-10 days but never went higher then 82, throughout this time is was stable 81-82. Nothing else that I can think of has changed over the time from late APL thru today.
Also in MAY Phosphate was quite low, measured ZERO on the Hanna Phosphate tester for about a week, fed more and it started coming back up to the target range of 0.05 to 0.1.
On May 2nd I sent water samples to ATI and it came back nearly perfect, I'm not aware of any changes since then. The only issues were strontium was slightly elevated and iodine was slightly low.
Throughout this time I ran my Radion Gen 4 Pro's using the AB+ setting at 68%, peak light lasts 6 hours with 5 hours of only blue at low par. The corals in the photos sit 17" below the light, the light is 7" above the water surface. I've since turned them down to 55% thinking maybe they were getting too much light. I have a Par meter on order and will take measurements this week.
I use RedSea Blue Bucket salt, do twice monthly 10% water changes, salinity is 1.026 constantly. Tests are done with Hanna for ALK and PHOS, others are red sea.
I'm really struggling with this, any suggestions would be greatly appreciated!
Back in late MAY the temperature in the tank moved from 78 to about 82 for 7-10 days but never went higher then 82, throughout this time is was stable 81-82. Nothing else that I can think of has changed over the time from late APL thru today.
Also in MAY Phosphate was quite low, measured ZERO on the Hanna Phosphate tester for about a week, fed more and it started coming back up to the target range of 0.05 to 0.1.
On May 2nd I sent water samples to ATI and it came back nearly perfect, I'm not aware of any changes since then. The only issues were strontium was slightly elevated and iodine was slightly low.
Throughout this time I ran my Radion Gen 4 Pro's using the AB+ setting at 68%, peak light lasts 6 hours with 5 hours of only blue at low par. The corals in the photos sit 17" below the light, the light is 7" above the water surface. I've since turned them down to 55% thinking maybe they were getting too much light. I have a Par meter on order and will take measurements this week.
I use RedSea Blue Bucket salt, do twice monthly 10% water changes, salinity is 1.026 constantly. Tests are done with Hanna for ALK and PHOS, others are red sea.
I'm really struggling with this, any suggestions would be greatly appreciated!
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