[AquaticLife] Blister?
I wouldn’t pop it. Maybe if you had a quarantine tank with pristine water quality where you would have a better chance of not getting it infected. Also, you would have to anesthetize the fish to pop it. I would just take a wait and see since these kinds of cysts or growths are often benign and do not bother the fish. If it’s air-filled, you’ll start to see buoyancy issues at which time it might then need popping but if fluid filled, it may not bother the fish at all or even go away on its own.
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com (Links to any articles referenced in above reply are listed on the right side, alphabetically under Labels and also under Archives by Year, Month)
Category: Philippines Internet Koi Society
