So. Yesterday was a bad day. Just when you thought you had everything under control...
This last weekend I upgraded from a 125 to a 140 gal
that was much better imo
. The 125 was up and running for a year since I upgraded from my old 60 that was running for 5+ years. Did the usual: saved all the water, cleaned out new tank with ro
water, no soap, soaked all pumps in vinegar and rinsed with ro
water. Put all LR
in holding tubs filled with water to minimize any die off watsoever. Put sand in holding buckets with water. Fish in a 40 gal
aux tank. They were all in there for 24 hours.
Got new tank set up, put everything back in the tank slowly, ran filters 'til water was less cloudy. Filled the rest of the tank with fully mixed saltwater from 55 gal
holding tanks in my garage. Made sure silicone on new sump config was dry and ready. Moved fish in last and everyone seemed ok.
Yesterday I woke up, all fish were accounted for. BUT... my cleaner wrasse was covered in a kind of white "cobweb" thing all over his body. No white spots like ich or anything I've ever seen before. He was still moving around normally, as were all the fish.
I came home after work to find my tank barren. Only my two clowns were still alive. ALL other fish died, including my brittle star that just died today. The clowns seem fine with no spots on their bodies and no sign of distress.
Tested my water immediately:
I just have no idea what happened. All fish were perfectly healthy before the tank change. Could something have contaminated the water during the change? The only "warning sign" I ever saw was this cobweb type thing... unfortunately I didn't take any pictures of it before I took it out of the tank. The other thing I did notice was patches of chaeto from my fuge did look a bit limp compared to the rest, as if maybe there was die-off? A portion of it was left out of water for 24 hours by mistake.
Powder Brown Tang
4 Green Chromis