It didn't go up and because their schooling fish does that mean u have to have more than 1?
Just because it's a schooling fish, doesn't mean you need more than one. However, I think they acclimate better in a group. Plus, it's recommended to add members of the same species at the same time to prevent fighting.
Thanks - Twisted! That's the tomini. It's an awesome fish too! It eats algae off the glass, circulation pumps, etc. It's a great fish for algae control.
You're right Boonjob. It's one tough fish. My yellow tang beat it up pretty badly at first. So I put them in QT for several weeks and added the tomini back to the display first. A few days later added the yellow and they never scrap with each other now.