i noticed that you said you wanted to get a bristlenose. IMO, a bristlenose doesn't belong in anything less than a 20 long.
fishycat is 100% right on the betta stuff, heat will kill most infections.
That should be fine.
Yeah, moors get big. I want some fancies but have no room. Actually fell in love with those chinese phoenix blue egg guys someone posted about in the coldwater section.
I have heard that pimafix is not the right choice for labyrinth type fish like your betta to fight fungus I almost made a big mistake by using pimafix on my betta when he had fungus actually someone told me here that it is not the right choice for bettas. I have read that it can do damage to that organ. Try fungus cure hope the fish gets better.