There are quite a few cichlid planted tanks! My 110g SA tank has pairs of Chocolates, Chanchitos, Bujurquina, an L240 and even a group of Geo. Red heads. Its been a lot of trial and error, but it can work. Mine leave italian vals, willow hygro, giant hygro, anubias, wendtii, banana plants and pothos roots alone. I'm not sure about Oscars, I have not kept one since I was a teen. It definitely helps to place rocks around the stem base that are too big for them to move. They don't bother with plants attached to drift wood either. A few of the plants they decimated were wisteria, swords, water sprite, water lettuce and St Elmo's Fire. Plants with a strong root system are a good idea. The correct ferts and lighting for your plants are key. Make sure your level of lighting matches the type of plants you want. For example consider low-medium light plants without co2 if its your first planted tank. Hope this helps! Good luck
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