Sunshine Pleco (L-14) Compatibility

[Lynsey]

I have a 75 gallon long (5 feet x 18" wide x 16" tall). The occupants are one Albino tiger Oscar, four silver dollars and a Sunshine pleco. My question is, can I add a synodontist cat (feather fin)? Will he fight with the pleco? Will it be too overstocked?

[polkadot]

How big is the L14? Generally speaking, bigger size plecos are able to protect themselves better.

[Lynsey]

About 9". It is the boss of the tank. It pretty much knocks the Oscar around if the Oscar is looking at it.