Sophia,
I understand your concern!
The water and LR were from my 4 year old established 55 gallon tank!
The tank had a very mild spike and back down again. I will keep a close eye on them and if I see any signs of stress will move to my 55g. After the first hour the clown was eating very well and the polyps were all open!
If you have more question you can PM me, htmack has requested no questions on this thread , just tank photos