Bettas And Methylene Blue?

[lilfishie]

so i noticed a lil fluffyness on my male this morning, so i got back from school, cleaned him out and added 2 drops of methylene blue, so do they need half recommended dose or can they handle full? thought id ask before adding anymore

 

[lilfishie]

anyone know?

 

[albinobreeder]

ive only ever used half

 

[zoekin8yg]

Ive only used it as a bath for a betta never added it for a live in