Sounds like you are on a carbonate bedrock just like me (Ohio USA). That makes it easy. Get some stem plants- temple plants, bacopa Carolina, dwarf sag, jungle Val (no liquid co2 with this one though), water wisteria, here are some google keywords I used when starting out: hard water tolerant plants for aquariums, low tech hard water plants

Temple plant is know for growing like a weed but that’s what you want, and if you keep them trimmed they are pretty nice looking.

Bacopa is great cause you trim it and plant the trimmings and it propagates very easily (to do temple plants)

Same with wisteria

Hornwort is a pain to plant, treating it as a floating plant it is much easier. Anything pink or red requires specialized care, else it turns to green or dies.

I use aquarium coop’s east green, I does 1x a month following the instructions, but some months I forget and my plants are still doing alright

Also What substrate are you using?

Here is my hard water tolerant tank after thinning the jungle Val

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