Size of tank

[ismailshah]

Hi everyone,

I want to have the following fish for my new tank:

2 clownfish
1 red fire shrimp
1 hermit crab

(Potentially one barnacle blemmy too)

What size tank would you guys recommend for this? I was thinking 20g but not too sure..?

 

[Gumbies R Us]

20g would be a good starter tank!