Just finished reading your post ,, I guess my first question would be ,, is the Chalice still in the bigger tank ,, or back in the smaller tank? I saw in your last post that the chalice is still receding
I am going to say a few things with the assumption the coral is in the smaller tank ,, it doesn't really matter though ,, you can adjust the advice ,,
Lets start with the smaller tank ,, the down side to smaller tanks ,, you can't have extremely different types of corals in them ,, like SPS corals and Chalices ,, two very different types of corals that like extremely different tank conditions ,, you won't be able to make them both happy in a tank that small ,, a smaller tank means you have to stay on top of your numbers ,, read that part again
your numbers in your first post were good ,, except for the Nitrates and Phosphates ,, you need to bring those numbers up ,,
Your question about lighting and if that was the problem ,, why did it take the chalice two months to start dieing ,, you can kill a SPS coral over night if its not liking something in your tank ,, it just took your chalice longer to decide it wasn't liking something ,, don't read anything other than that into that problem ,, it really doesn't matter at what height you have your lights hung over your tank ,, unless you have corals at the top of your scape that are getting spot lighted by the LEDs or you just can't get the Chalice the Par number you want without giving the corals at the top of the scape to much light ,, hang them where you want them ,, then adjust the % until you hit the Par numbers you want ,,
Your tank numbers all look good except for your Nitrates & Phosphates ,, I would bring those numbers up ,, I feed my Chalices also ,, but not twice a week ,, drop that down to once a week or once every week and a half ,,
Flow is a big issue if its to much ,, Flow ,, its a issue for Chalices ,, your were having problems with it in the small tank ,, you could just turn the Gyre off and use the return pump to create the flow in the tank ,, that's not what I would suggest though ,, my suggestion is to deal with the return pump ,, I have two suggestions ,, one ,, get a smaller pump that's as close as possible hits the amount of flow you want going into the tank ,, two ,, place a valve in between the pump and the tank that you can adjust ,,
You have your Par number right now that you tested with the Par meter ,, that's the hard part ,, you know what your lights are doing, that's a biggie ,, bring your Nitrates and Phosphates up ,, get you flow dialed in ,, feed the corals once a week instead of twice ,, don't over feed ,, the Chalice should begin to make a come back ,,
