What kind of fish is this?

[cob201]

COL is correct, the only Farlowella species that are imported with any kind of regularity are vittata and mariaelenae, and this looks far more like vittata. If you want a 100% ID post a picture of it's belly scutes.

 

[COL]

Definitely vittata, given the shape of its rostrum. Though, as stated, do keep your eyes out, three scute contaminants come in from time to time.