Went with a bushy faced pleco last week and am very pleased. Excellent custodial skills, put the betta in check the first day with a nice tail whack to the face and now it lounges around where both betta and pleco seem to be doing just fine.

Supposedly these types of plecos don't get very big...roughly 3 inches max. But we'll see. Or you folks could tell me that I'm wrong and it will balloon up within a few months.

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55 Gallon/Fluval 405/216W Corallife

Over 20 platies - mostly babies hiding in java moss
2 Gold Dojo Loaches
2 Striped Tetras
3 Otos
1 Bushy Nose Pleco

Java Fern
Java Moss
Amazon Sword