emergency help

My Majestic Angel didn't like a new fish and she developed Ich. She has the typical 9:00 pm horrors with the spots on fins dramatically showing, darting, and scratching. Removed the new fish and have been treating with Cupramine for 3 weeks with no results. I even ordered and shipped overnight...

I had a 20 gallon long glass reef tank and for some reason it has recently cracked in the back from the top to the bottom so around midnight i had too remove all water into buckets. next morning i went to the lfs and i bought another similar tank so what i did is moved the sand and live rock...