Set up my 20 gallon tank about a month ago added indian almond leaves and mopani wood because I read that bettas like the darkness it gives the water. Theres 2 snails, 5 guppies, 13 neon tetras and 5 cory catfish in this tank along side him. Im new to owning fish and tried to make the best enviorment for him im just not sure if im doing it properly. Also the live plants are becoming a little wild, am I supposed to trim them?