I’d he wants, he can have an RTC to clean up the poop so he doesn’t have to do wc!Yeah no actually just get like 20 oscars just do more waterchanges and overfilter duh
Definitely two only.
Granted, those two little 2" Oscars will look lost in that sized tank for a while and you'll be tempted to fill out with other fish.
Avoid temptation because in next to no time, given a good diet and water change schedule, those two teeny guys will be over a foot long apiece and you'll be thankful that you didn't put more in.
Why don't you turn this thread into a double Oscar grow out thread?

What’s the body height?
What’s the body height?