I have a tank but I want to know how many and what variations would be best. I know for sure I want 2 ADF's and a male betta. The other things I have been looking at is a mystery snail and a few ghost shrimp. I do realize there is a chance the shrimp could be eaten but at 33 cents I'm not too worried. I also found two 3-5 cm Marimo balls that i thought would be cool to have and I've heard they can cause less algae to form. I have had many betta's, goldfish and guppies before but i am looking for a little more variation. What are the thoughts on these possibilities?