Sailfin

Hello All:

I am thinking of buying a sailfin/algae blenny.

Water is good. It is a 95 gallon corner bow front.
Temp: 79-81
Ammonia: 0
Nitrites: 0
Nitrates: 5-15 depending on the day
pH: 8-8.1
Sal: 1.0235-1.025 refractometer

"So far" his tank mates would be:
3 green/blue chromis
2 ocellaris clowns
1 red flame angel
1 cleaner shrimp


I notice algae builds up on my rocks and sand. I would like a cleaner fish (I do not want to add snails, etc.) Any thoughts on the blenny?