I'd say you could add another two of everything... Ghost shrimp, you could add another five though, they clean more than they dirty, so it's good to have a good amount of them
you could have it stocked like this...
6 - Tiger barbs
4 - Red eyes
4 - Leopard corys
8 - Ghost shrimp
Sorry for the delay, power's been going on and off in this snow storm for the last three days
and about the light, I don't do plants atm, but i'm currently working on getting rid of some of my fish so then i can restock my 30 gallon and make it a planted tank
Ok I know this is an old topic but I have to ask just a few more questions so here it goes-
My current stocking
8-harlequin rasbora
5-glolight tetra
4-peppered corys
1-upside down catfish
I was wondering if I could add
2 more peppered corys
6 pristella tetras
I have a whisper 20-40 filter and I will be adding another filter that is rated for atleast 40 gallons