I woke up this yesterday and i noticed my smaller clown loaches (about an 1") got white spots all over them. Its odd because i have about 8 of them and they all got it, but i also have 4 larger ones bout 3.5inches and those dont have any white spots at all. I immediately did a water change of about 30-40% and added some salt. I also raised the temp to 86ish. I tested the water and ammona and nitrites are at 0. I can't really afford any expensive medicines or store bought treatments, so what would you guys recommend?