Is this the right formalin?

[T Haynes]

Looking for 37% formalin as last ditch effort for my clownfish. They've got some fungus around the mouth growing fast and after a month of slow developing fungus some white spots are showing. Many suggestions that this is brook so going to treat it as such since no other meds for just mouth fungus are working. Is this the stuff I need?http://www.onlinesciencemall.com/formaldehyde-37-solution-laboratory-chemical-30ml.html?gclid=Cj0KEQjwiN6sBRDK2vOO_vaRs5cBEiQAfsnJCd8ItMKc3pIQ4NVtFh7mM0iUNuyifPFvsmcok6qUdi0aAsRD 8P8HAQ

[Deinonych]

That might work. Formalin MS is what I use: http://www.amazon.com/Fish-Vet-Formalin-MS-32-oz/dp/B000O3EI2Y

[T Haynes]

I won't need that much but I appreciate it. I hear the stuff does t store well so I'll be tossing it after and hope I never need it again

[Ginger bay]

Pet Solutions have it.