If they were in the same tank when you got them, then you need to treat Sebastian for white spot (ICH) as well whether or not he is showing spots. Remember to treat for a good week or so after spots are gone to make sure that the parasites are gone for good. Siphoning your substrate really good is very important in this instance.
Oh no, good luck treating it, when I had ich about a year and a half ago, I managed to get rid of it with salt and high temps. After a week of dosing it was gone but I dosed for another week just in case.
No sign of white spot on either of them, last dose is on monday Tank cleaning day tomorrow, so that'll be my day gone haha. Thank god I dont have to do mums aswell
I'll get some pics up here for you guys soon of the tanks
Five bettas between us. Kishi (Mums, Blue standard tail), Oliver, Sinbad, Sebastian, and Lucy
Also! Sebastians tail seems to be growing! Looks like it might have been nibbled by angels o:! Excitement!