A little mad at myself

Well shoot, just when you think you know what you are doing mother nature throws you a curve ball. I have never had a problem with my 165 gallon- but these small tanks are very picky.
I did a 10 gallon water change on my 29 yesterday and added some reef chemicals as per their recomendations- spec. iodne and stron, and molly (to help with the zoa's), and a touch of kordons- actually, a bit to much kordons (the cap came off and did a triple dose accidentally). However, to my dismay, my anthillia (sp?) was down for the count this morning, and my lobo isnt doing well. Any recomendations, I really love the look of the anthillia, every thing else is doing really well, from hammer, duncan, acans, leather, elegance, s/t plate, candy cane, shrooms, monti, gorgs, even my 7" maxima clam and all zoa's & paly's are doing fine. It's just the lobo and the anthillia.
Are anthillia/lobo always so touchy, what can I do? Perhaps another water change- using premixed salt water, or, just wait it out and see what happens???
Any help would be greatly appreciated.
Thanks

 

well this is a deep purple anthillia, and is slow growing, but as above- it's all i did. I just put some garclia algae in the tank, I hope it will absorbe the problem- I am going to do a 5 gallon r/o water change as the sg. is 1.025 at present- it was 1.022, perhaps this will help also.

 

yea, nick you got it.

 

well I always use a needle wheel pump over a 24 hr period to premix salt water- this has always worked for me. but the chemicals I used- I have used them for years (kent marine) w/o a single mishap, I feel terrible for the lobo, it was doing so well, and now my center peice is well.... looking like epoxy drool. I am really pissed off at myself, I should have known better.
Oddly the hawk fish in the 29 seems to have taken a liking to the garcilia I put in there- he is eating it- LOL, and....irritating me in doing so.   On the possitive side the hawk is leaving the clown alone for now. They still havent decided (after 2 mos.) who is boss.
Oh and btw, hawks grow much faster then clowns do.