GREAT advice athena! im not too "up" on my UK meds as i live in US. both meds youve mentioned ive read a bit about and seem great. i would not use them together. and yes, either go VERY easy on the melafix, or dont use it at all (ive had dire consequences with the stuff and would NEVER sue it again with a betta). i would also suggest retreating for flukes.
keep us posted.
cheers
keep us posted.
cheers