How many discus?

[Mj75]

Hello everyone. I'm trying to set up a 75g hi tech planted setup. I have heard of the 10 gallon per discus rule. With a planted tank how many discus can I keep? I've seen some post with less than five (which some say can cause aggression between discus).

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[pcsb23]

Generally planted tanks are harder to maintain so always better to stock lighter than a BB tank. In a 75 I'd suggest 5 or 6 adult discus would be ok.