Unless you keep small slower moving fish in the tank he should be fine. Even then, I had mine in with my scooter blenny and just made sure I feed the sally some meaty foods once a week and he never bothered scooter.
Kevin, I use the Kent Marine Tech CB parts A&B...seem to work really well...and before I started using it my tank looked reletively like yours...now theres hardly any hair alge to be found...
good luck with that stuff...and otherwise the tank looks good *thumbsups
I get along great with my LFS and one day I brought them all donuts... then they were great and returned the kindness and I got my LR at $5.99 lbs. (Normally $9.99 lbs) I was very happy that day!