So velvet wrecked havoc on my tank, killed off most of my fish.
I have a few fish left (a couple of firefish, a chromis and a wrasse)
Do I have to remove all the fish from the tank and keep it fallow for 3 months to clear the system?
Or can I leave these fish in and wait the 3 months?
I have a few fish left (a couple of firefish, a chromis and a wrasse)
Do I have to remove all the fish from the tank and keep it fallow for 3 months to clear the system?
Or can I leave these fish in and wait the 3 months?