Lol folks always need experience to teach them how ruthless dovii are. My friend has a 8-9” dovii in a divided 55 gallon. It was only divided after a few community Cichlids paid the ultimate sacrifice one by one
I wouldn't put a dovii in a community tank less than 600g.I’ve had two different Doviis bring down an entire tank in a night. Just out of no where massacre every fish, about 6 each time. And they were females around 6-7 inches when they flipped. They are the most untrustable fish.
Your playing with fire with a dovii as soon as it hits 6-7inches if your Oscar isn't aggressive the dovii WILL take advantage and will slowly kill the Oscar the first stage is usually quick attacks (like grammodes) shredding scales and fins testing how weak/strong the target is and that alone would probably be enough for an olddddd oscari may just do that, i was trying to do it so the oscar would still have access to all 500g but i think i will just section off a little 100g section for the dovii.