I think my cleaner shrimp expired :(

Well honestly I wouldn't put a PBT on a 150... Maybe on a 200+..
those fish are to delicate and get stressed easily, they are very prone to ich or anyother disease.
However technically you could add one if your tank is in perfect conditions.

 

I wasn't sure. I really want a tang, but have a 75g. A PBT was the smallest I saw. It's really cool looking. I was looking for a tang that isn't all that common, but is peaceful & interesting. I see a lot of hippos & yellow/purple tang, at least on the forum.

Looking for a show fish & really like tangs.

 

You could try a clown tang,( not 100%on that but I think) or a mata tang.
Blonde nasos are pretty cool. Purple tang.
Live aquaria has a bigger list, you could go there and browse for tangs and get more details.

 

lol. Live Aquaria is where I am looking.

 

haha blonde nasos get 18" & purples can be pretty aggressive.

http://liveaquaria.com/product/aquarium-fish-supplies.cfm?c=15 43