Water change macassar

Anarchy18

New member
Well how can I start this off.... well today I wanted to do a water change on my 150g tank. wile I was at it I wanted to re-scape the rocks. I 10 fish corals all I have is a carpet anemone and a couple of red mushrooms.

As normal I started the water change and took all the rocks out, including the ones with the mushrooms attached. After I knew how I wanted to do set the rocks I began to do so. All the fish stayed in the tank except fro my lionfish, (didn't want the accidental stinging). After I was all done with the rocks I began to notice my puffer fish swim erratically, after a while he just stopped all together. I then started seeing my other two tangs and my female clownfish do the same. At this point I had put the lionfish back in, he too was acting weird. I noticed some slime like stuff coming from their gills. All in all I lost 5 fish. most of which I've had for a long time and started this hobby with, not to mention my two fav fish died lion and puffer.

My guess is between the sand floating from the sand bed being disturbed and the anemone and mushrooms releasing slimy stuff, all of that stuff got into the fish gills and pretty mush suffocating them.

Has anyone ever experienced this or can anyone t me know if they know what happened?
 
How deep is your sandbed?.....Possibly released stuff when moving rocks.Have you tested for Ammonia?
 
how old is the system. sounds like something was in the water column that was released when pulling and moving everything around. did you pull the rock out with the anemone on it to? when the rock was out. was it submerged or just out in the air while you rescaped?
 
The tank is close to 2 years old. no the anemone stayed in the tank I did not touch it at all. The mushrooms that were on the rock that took out the were out in the air, for about 10 mins
 
Fish update:
Lionfish, DEAD
Pufferfish, DEAD
Hippo Tang, DEAD
Yellow Tang, DEAD
Brown Tang, DEAD
2 blue fin Damsel, DEAD
White and Yellow fish (forgot what it was), DEAD
Bagni Cardinalfish, ALIVE and doing well
Mated pair of clownfish, ALIVE but looking a little down
Eel, ALIVE
 
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