Need help with stocking ideas for fresh water aquarium!! And a few quick questions :)?

Hey guys I have a 29 gallon tank and I have right now 1 dwarf gourami and 2 dwarf cory catfish...I do plan on upping the numbers for them!! Anyway I am thinking this for my over all stock

1 dwarf honey gourami

4-5 cory catfish

5 cherry shrimp to start with

6-9 ( some kind of tetra ) peaceful and pretty coloration

I also want so get a moss ball I don't know much about them but I know I dot want it to float so how can I get it to the bottom and not have it floating and moving around the tank??

And my last question is how can I vacuum with my cherry shrimp in the tank, I don't want to suck them up

Update: Right now I have

1 dwarf honey gourami

2 dwarf cory catfish

What i want in my tank is

-1dwarf honey gourami

-6-9 schooling fish I want pretty and peaceful tetras!

And then I want to up the number of cory catfish up to 4 or 5

And I want about 5 cherry shrimp to start with

Just making this clear^^^!!!