iv got a well established ten gallon and i was wondering how many kuhli loaches (black and/or stripped) i can put in there. its got some plants in it at the moment and id like some new additions to make it more of a really lush aquatic garden. the kuhlis will be the only critters in there, unless i decide to stick a betta in there... its really supposed to be more of a "kuhli farm" where they can have it all to themselves and swim around and play as they like 
im hoping i can put 20 in there. is to much?

im hoping i can put 20 in there. is to much?