API Furan 2 for Columnaris?
I set up a 20 gallon planted tank and cycled it.
I added 7 Zebra Danios and within 4 or 5 days they all died of a "mysterious" disease. Which turns out to be Columnaris because the fish had white fuzzy patches on the tips on their fins and white fuzzy stuff on their gills as well.
Do you think it is a good idea to use API Furan 2?
I already added aquarium salt.