just been away for week and half and stupidly left my 400 litre tank unattended. came home to the most horrendus stench and whole tank wiped out . lost a good few hundred £ so pretty gutted . . tank is out side waiting to be washed down. but basically i am wondering if it is safe to reuse gravel and filter media after i wash it. the cause of my tanks crash was due to fish death which rotted while i was away. any help / advice much appreciated
thank you
thank you
With adiquate filteration on a 400ltr tank, a single dead body should not caurse a crash, unless it was a VERY large fish
I think you need to look for more subtal caurses, such as disease or equipment failure.
Just make shure it is a chlorine based bleach that you use 







