Yes i agree with all the posts above, i definatly think it is a Bristlenose pleco. Its either a farely young one or a female but i am betting the latter.
The one thing i would say is it has quite a wide head and the top fin is quite far back on the head. Having said that i am 95 percent sure its not a bulldog pleco and 150 percent sure its not a pitbull pleco.
I dont really think its a bulldog pleco because the colour and 'armor like' look isnt there.
Plus the fact that, out of the 8 or so bulldog plecos i have owned in the past only two of them have a head similar to that. the first one was a batch from some i bred and it actually died very early on (but the head looked more defromed than natural like yours) and the second i bought and it actually turned out to be a bristlenose pleco (i.e. it grew bristles and got alot bigger than it should have for a bulldog) Bn grow to about 15-16cm whereas bulldog pleco only grows to about 9-10cm
The reason it definatly isnt a pitbull pleco is because of the colour and pattening plus i have many of them, and i have also bred them in the past. There head is rather flat and the eyes are nearly ontop of the head not the side (its the same with bulldog plecos - hence the name) plus they only grow to 6cm, much smaller.
here are some pictures of both so you can compare but i really really doubt that it is one of them. Its definatly a BN imo
Bulldog Pleco: http
/www.plantedtank.net/forums/images/fish/42_Bulldog_Pleco_Chaetostoma_cf_thomasi.e.jpg
Pitbull pleco: http
/farm3.static.flickr.com/2289/2327221887_657399670c_o.jpg
Sorry for such a long post! I hope this helps and if you are ever stuck again feel free to pm or email me
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