new to the forums and newer to the home fish world so, hello... we purchased a used tank today which came with fish and plecos... there is a 12" standard black L-021 (we believe) and this guy.. not sure here, any help would be appreciated. I know these aren't the best but it wasn't being very photogenic. It's about 8" long and now that we have a picture should we worry about the 'growth' on the dorsal? (seen in the second picture)
