What kinds of fish do well as a solitary specimin in a 20H community tank, besides bettas? I currently have:
4 guppies
4 platys
2 panda cories
1 something cory
4 zebra danios
lotsa anacharis
an amazon sword
a variagated plant of some kind
random bulbs that may or may not grow
Would it be better to add more of something thats already in there? What is the limit for bottom dwellers like corys? Leave it alone?
Also, is it normal for platys to drift along, floating up for a bit then start swimming again?

4 guppies
4 platys
2 panda cories
1 something cory
4 zebra danios
lotsa anacharis
an amazon sword
a variagated plant of some kind
random bulbs that may or may not grow
Would it be better to add more of something thats already in there? What is the limit for bottom dwellers like corys? Leave it alone?
Also, is it normal for platys to drift along, floating up for a bit then start swimming again?