Allelopathy That You Know Of?

[Smells Fishy]

I havent done that much research on this yet so i thought i would see whats what on here. I bet theres a good few botanists on here who can help. The only one that i know of is Jungle val killing off Duckweed and thats came from MrJoeGecko on YouTube who has some videos on the Walstad method, part 3 is allelopathy. I plan on getting a lace plant, banana plant, crypt spirails and crinum calamistratum for definite in the same tank. So if anyone knows if these plants can be bad news please let me know.

Cheers.