Yes you can pair a pleco with your oscar as long as the pleco is definitely too big to fit in the oscar s mouth. And that but is growth rate . So therefore you might pick up a baby oscar and a baby common pleco but

This though comes with a but

Oscar fish Oscars grow fast and a pleco might struggle to keep up with the oscar s growth rate. Oscar fish aggressive nature can cause tank mates to live in fear so choose passive fish. A few good examples include arowanas bichirs convict cichlids firemouth cichlids green terrors jack dempseys jaguar cichlids sailfin plecos severum cichlids and silver dollars. Oscar fish is known to be a very aggressive fish so you should avoid keeping any small fish in the oscar fish tank. Besides oscar fish is also one of the most intelligent fish in the aquarium hobby. Pleco silver dollar 12 best tank mates for oscars with images keeping oscar fish together. As oscar fish are aggressive ideally you Oscar fish care requires a bit of understood to feed them with their as in the microwave you will oscar fish fighting pleco need to give at least 25 of the water. Food intake for oscar fish often have gone i was unable to find various forms and platforms where other thing rock plant out of them instead of making that people looking pretty.

So the ideal water parameters range of sailfin pleco is similar to oscar fish. So you can easily keep them in the same tank. 20 tips to maintain a healthy aquarium. Do oscar fish fight each other Yes oscar fish fight each other. There are several different ways they fight with each other but the most common way is jaw or lip locking. Your oscars are still somewhat small and probably are not a serious threat to your pleco s yet. However years ago i had tiger and red oscar both about 6 to 8 inches and my 2 plecos were about the same since. I had them in a 55 gallon tank with protection.

I was a teenager at the time and did not think the oscars would bother the plecos. My oscar does not have new tank mates and has 3 large plecos that have been with him for years in my tank and he is all of a sudden chasing and biting and picking on one only. My oscar is around 6-7 and the pleco being chased is around 8 or more but the pleco is still eating and doing his own thing most of the time. A fish the size of a bristlenose looks like a tasty meal to a large oscar. Even worse they are hard to swallow and lots of people have lost oscars after they choke on small plecos or clown loaches .they have defensive spines that they erect when attacked.