Are you sure that the dirt from your yard is safe? No fertilizers, pesticides or other nasties?
Going with this many rainbows, especially bigger Bosemani's is asking for disaster in a tank this size. Unless you're doing a water change every 2 days, an ammonia spike is bound to happen...try to go for smaller fish maybe?All the angels are in a larger tank and much happier, prob not as big as they deserve though... anyways a friend brought me some stock as well so i think the tank is properly full now! Ive got 3 red and blue Colombian tetras, 4 turquoise rainbows, 2 bosemani, and an unidentified syno. Oh and 3 nerite snails, all different patterns.