Help I've done. The 5 day treatment on my veil tail batta we got him at pet Co a couple months ago. I noticed Popeye and got maracyn 2 and have done 5 days of treatment and his Popeye has got worse in the last day or so he is still eating. And is very responsive still though. It's a 35 gallon tank I have had Japanese trapdoor snails but they are removed no heat and a carbon filter Wich I've removed the carbon.