Saigeona

Please help I have two of them but the other one is doing just fine one of them has been getting smaller and smaller and now has a bleeding spot near his end I feed them both live crickets I let them catch them I just put a few in there habitat a week I don't know if it was the substrate or something else I really care about my frog I think it's a he and his name is Ron I think I can't tell he is a brown type so is the other one and he has green spots behind his eyes PLEASE help I am very concerned he is suffering no local gets treat frogs and we are NOT a rich family but I am really scared PLEASE help me!