sorry about the lack of info.
I have a 120G that has been up for 2 months. this was a direct upgrade from a established 5 YO 55g reef. the 55g was disease free. I never had one breakout of anything and never lost a fish for 4 years. just did waterchanges and never added any other fish.
all my existing fee moved in and were fine
1 YT, 1 Foxface, 1 argi angel, 2 clownfish, 1 Goby, they all did great and nerver and issue.
new tank was going good. no issues tank was started with 25g of original tank water and 65 pounds of 5 YO live rock. I moved the fuge from the old tank to the new tank.
then after a month I added a juvenile clown tang.... big mistake.... NO QT! he started showing signs and it went down hill from there.
I setup my old 55 as a QT tank. I lost all of the fish except for the foxface! he is doing well in hypo and wont stop eating.
the issue is my DT is now a killing machine. my beautiful new aga 120 is a haven for my shrimp and bta. there loving it. but I am afraid to add new fish and start the cycle again.
another note:
Maybe its me since I havent been at the LFS alot until i got my new tank. everything looks or is sick. it didnt seem this way in the past. but for now after this mess, I am sticking with my new fav LFS. Liveaquaria.com