Brook treatment

[Default]

Does anyone know where I can get formalin or formaldehyde in canada? I used the last of mine for dips, I asked at the pharmacy and got weird looks.
I have new clowns in QT that are displaying signs of brook. Ive dipped the fish in a formaldehyde dip and treated the tank with quick cure as it contains formalin. How do you guys deal with brook? I got it about 10 years ago from a wrasse and it killed every fish in about 36 hours.

Thanks

[Coasting]

Most pet stores sell Quick cure or are you looking for more potent/concentrated versions of formalin?