one more shrimp?

[JasonJ]

i have a 20 gal tank
30 - 35 lbs LR
30 lbs LS
prism skimmer.

everything has been runnin well since i started it september.
i have 2 false percs.
one fire blood shrimp
one cleaner shrimp.
some corals


i recently just got a cleaner shrimp and hes awesome really active than my fire shrimp.

question is can i get one more cleaner shrimp?
or is that too much already?