How many fish do you have in there? Don't see any in the pic...
Fish:
1 yellow tang
1 blue tang
1 six line wrasse
1 orange clown
2 black occ clowns
1 blue chromis
1 royal gramma
I haven't read the whole thread but.....
I'd be turning all light off at night. The figures you showed must actually be quite bright at night time, where a period of total darkness is required.
I had some problems when I had hydra 52's and ran them at 1% on the blue at night. Changed to total darkness and saw improvement.
I'll also say that those lights don't do the spread they say, they may well be ok for softies and perhaps lps at covering a large area but for sps they are a very direct light source which needs to be high up and have probably double the recomended amount. At least you do have yours quite high up though.
Shame you can't get an icp test there. Very helpfull test, for all you know you may have a lot of heavy metals in the water. Don't assume you don't as there's lots of surprised people over here including myself, copper, tin, lead all making their way in with no apparant answer why ( flake food and maricultured bases I reckon).
Lastly, buy corals from other reefers with tank raised sps. The ones from the store are either wild or mariculture - they are not as hardy as the ones grown in captivity with synthetic salt. Even the people with full blown sps reef has a hard time keeping mariculture or wild pieces alive or keep their color.
kurfer"” I too experienced the same issues with keeping SPS. In my previous system, similar corals thrived like LPS, but SPS did not do so well or had STN. I share similar regimented water quality monitoring and maintenance.
The other thing we share are LED lights. I am convinced changing to or adding T5 or metal halide lighting would have improved the ability to grow SPS. How much improvement - not sure, but likely not any worse. I have decided to stay with the LED because they are quiet, low heat and low energy vs. T5/ metal halide fan noise, high wattage and heat impact. I finally accepted adjusting to what will grow under LED, instead of putting everything that looks appealing and hoping it to thrive, then die. If SPS is what you want, then have you considered changing to or adding T5/ metal halide lights? I think small tweaks are good, but lighting might be one of the bigger factors, if not the biggest.
The last observation is keeping softies with SPS may cause some toxin issues. Leathers are toxic toward other corals due to their release of terpenoids (poisons used to ward off encroaching corals). They have been known to harm some SPS and LPS. Sure there will always be exceptions of mixed reefs, but generally speaking, I think this might be worth considering.
My red sea coral pro always mixes at 380 calc, 7.0 alk and 1100 mag. Sometimes I see 9.0 alk, water changes are not big enough at 15% to make that much difference.
I can't keep SPS, when I finally get a frag to take off it dies all of a sudden overnight.
I check my alk daily, it stays between 7.4 and 7.8. My calc is always right around 410 and mag I keep around 1320. I use an Apex to monitor PH which stays stable at 8.1-7.9; my salinity probe keeps me in check as well as my temp probes holding at 79.
No matter what I feed, what I do...the following WILL NOT live in my tank:
Acans, will look good for 2 weeks then shrivel up and NEVER open.
Trachyphyllia & Wellsophyllia, usually shrivel up before 3 days and slowly die while in shrunken state, love to lose color.
Zoas, they just don't stay open and eventually wither away...even the cheap green ones
Acros, basically will never have PE and eventually die through a sudden random RTN event
What I can keep:
Hammer corals - had some die but most have grown nicely
Frogspawns - had a few die but mainly they flourish and grow
Birdnest - grows like crazy
Toadstool - grows
Torch corals - growing like crazy
green star polyps - open and close randomly, seems to be ok? Not really spreading though
xenia - colony seems to have stopped spreading but always open and flowing
Jury still out:
Duncans, some seem ok but often close up
RBTA, have one in my tank...was doing great and split into two, now both shriveled and moving all over
So basically my tank has nice frogspawns, torches and hammer corals but everything else is hit or miss and SPS other than birdsnest and monti caps always seem to die.
.
kurfer— I too experienced the same issues with keeping SPS. In my previous system, similar corals thrived like LPS, but SPS did not do so well or had STN. I share similar regimented water quality monitoring and maintenance.
The other thing we share are LED lights. I am convinced changing to or adding T5 or metal halide lighting would have improved the ability to grow SPS. How much improvement - not sure, but likely not any worse. I have decided to stay with the LED because they are quiet, low heat and low energy vs. T5/ metal halide fan noise, high wattage and heat impact. I finally accepted adjusting to what will grow under LED, instead of putting everything that looks appealing and hoping it to thrive, then die. If SPS is what you want, then have you considered changing to or adding T5/ metal halide lights? I think small tweaks are good, but lighting might be one of the bigger factors, if not the biggest.QUOTE
Please read the original post, I cant believe any of those problems are due to LED use. Having someone make a change in lighting is expensive and not likely to help this problem. Full spectrum leds are perfectly capable of supporting any type coral over a long period of time. Sure some of the growth and color may differ from other light sources but leds do not cause mass rtn outbreaks over night and kill nearly every species of coral it touches.
kurfer"” I too experienced the same issues with keeping SPS. In my previous system, similar corals thrived like LPS, but SPS did not do so well or had STN. I share similar regimented water quality monitoring and maintenance.
The other thing we share are LED lights. I am convinced changing to or adding T5 or metal halide lighting would have improved the ability to grow SPS. How much improvement - not sure, but likely not any worse. I have decided to stay with the LED because they are quiet, low heat and low energy vs. T5/ metal halide fan noise, high wattage and heat impact. I finally accepted adjusting to what will grow under LED, instead of putting everything that looks appealing and hoping it to thrive, then die. If SPS is what you want, then have you considered changing to or adding T5/ metal halide lights? I think small tweaks are good, but lighting might be one of the bigger factors, if not the biggest.
The last observation is keeping softies with SPS may cause some toxin issues. Leathers are toxic toward other corals due to their release of terpenoids (poisons used to ward off encroaching corals). They have been known to harm some SPS and LPS. Sure there will always be exceptions of mixed reefs, but generally speaking, I think this might be worth considering.