Swimzebras
Aquarium Advice FINatic
- Joined
- Jan 29, 2011
- Messages
- 983
From what I've seen it looks exactly like a thornback. I tried to post a picture of one from live aquaria but it didn't work. Its also known as a helmet cowfish. Liveaquaria says 1' and 70 gallons. If you look up thornback cow fish there is one picture that looks just like your fish. I don't think it is a longhorn, but I could be wrong.