Too much?

Does anyone think this is too much for my 20 gallon? It's doing fine but I just think I have too many fish. My current stock list is:

Fish:



1 Indian glass fish

1 blue corydora

1 purple passion danio

2 (1 blue 1 red) moon platies

1 golden sunset molly

1 coral platy

1 pictus catfish

1 bumblebee catfish

1 striped Raphael catfish

1 farlowella catfish

(I really like catfish)



And inverts:



2 black mystery snails

1 tiger nerite snail

3 ghost shrimp

1 freshwater clam