hoping not to sound defensive but I would like to explain myself a little
I have had the LED's for 4 months ramping them up as recommended over 2 months and the tank is was doing well under them.
I have lots of corals doing well at different heights and spots in the tank through lots of trial and some errors, BTA has just split and both are doing well, Ricordea, hammer, torch, leathers, several types of Zoa's all doing great. and while I am not seeing the growth I expected Duncan and Blasto are looking really good with great extension and feeding response, I also have three brains two symphalia and an open and they are doing good too and I have heard those are tough especially with owning two dwarf angels LOL.
My next step was SPS and I kept my ALK and Cal up hoping to see growth. There is a lot of info on numbers and reading up on alk, yes I do ost of research like I think we all do, I felt the 7-11 recommendation was good and targeted the high side.
I bought the SPS from divers den dipped them and placed them in the bottom and raised them up to their current level in the tank over a three week period, when they started dying back I assumed LED's were too dim and lowered the light 6" as I had them at about 14" above the tank over a one week period, then when that made no difference I turned them up to current levels 15% bump over a 10 day period and started thinking maybe they were too bright and was going to start turning them down to see if I could see a difference. That is when someone came over and told me the issue appeared to be not enough light that is what prompted my questions.
I was really hoping to hear from other Photon owners on the forum that could offer advice on my power settings. Adding the T5 back into the equation made the BTA bubble back up and I see better extension out of my torch and hammer the frogspawn seems fuller too and the Birdsnest after 4 days seems to be less bleached looking but that could be wishfull thinking on that one, now I am thinking maybe not enough light, maybe not the right spectrum or mix, maybe my whites need to be higher or lower, really hoping a fellow RB Photon owner with a successful reef would chime in on how they run theirs.
From all the comments from successful reefers on here I am planning to go down to 10 on my Alk. and I will continue working on phosphates while keeping fish happy.
The other confusing part is, of the 5 SPS pieces I got one is doing good, looks to be a green slimer, it is encrusting the base and pretty sure growing, why??? when everything else in the same spots are dying.
I know there is no science to most of the questions, lights, equipment, parameters test kits, temp is even a point of contention, everyone seems to have different experiences. I read the forum everyday and even this post that went all over the place was interesting and I learned something though I have no real answers, that is ok there may not be one, for all I know 4 of those pieces were shocked in some way (yes I drip acclimated and dipped before putting in tank)
I will try SPS again when I have stabilized my Alk at 10 and nutrients are more under control.
Thanks for all the input