Thanks for your reply and yes, I'm trying to keep them but my problem is different, they are not feeding. I keep them in individual containers which contain a live fish (Guppy) all the time. one time I saw one of them trying to catch the fish with no success.
About the white spots disease, actually they did started to develop white spots but I immediately added more salt to the water and it's gone over night.
Do you have any idea why they are not feeding?


