Recent content by Bettas&Loaches

I have a 20 gallon tank with a small species of paradise fish, a thick lipped gourami, a honey gourami and a betta smaragdina, all living peacefully. Just wondering if anybody else has something simillar.

I have had 5 kuhlis in my 20 gallon tank for over 4 months now, seemed really happy and healthy. One day I come home and notice the smallest kuhli's head is turning white. Nothing seems wrong, because it's still eating well and is very active. Any thoughts on why?