Jungle Fungus Eliminator

[sbetta10]

Hi guys, this is my 2nd posting on this forum and I was just needing some help with the JFE treatment for fin rot, cottony specs, SBD, loss of coat color, and red striping.
All of my prior history with my betta is located in the thread below:
http/www.fishforums.net/index.php?showtopic=337045&view=getnewpost

In short: He has gone thru velvet treatment successfully but seemed to get a secondary infection, possible fin rot and columnaris so I ordered Jungle Fungus Eliminator after hearing that this is the best thing to treat these issues with. It has been over a month since being treated for velvet so I wanted to try this JFE for a couple of days to see how it works. Before I do this, I need to know how to administer it to him safely:

The bottle says to do a 25% water change and to add the amount required for his gallons which he has a 3 gallon tank. I plan to vacuum the gravel with the 25% water change.
My question: Should I mix the required amount of JFE with the new 25% water that I am adding back in?
Or, should I just add the new water back in after vacuuming the gravel and THEN add the JFE into the tank? Or does it even matter?

If anyone has any experience with this medication specifically for a betta, your help is appreciated!! Thanks in Advance!

 

[WILDER]

Need to look at your water stats in ammonia, nitrite, nitrate, and ph.
Red streaking can be due to bad water quality, septicemia.

I would use maracyn one and two over fungus eliminator.

Do the water change and gravel vac then add the med.
If you have to change the water during a med course, you just add the correct amount of med back to water removed.