Re: growing plants in bare botom tank
If they want to buy those types of eclectic plants, they hopefully would have substrates, no?
I'd add the substrate of choice, and then sell the substrate also. Marketing more products, makes your life easier, more sales, healthier plants.
Seems like a no brainer..........
Pots are fine, buy lots of RW/pots.
I'd do 2x a week water changes, 50-80%.
Fertilize only after the water change.
Grow out tanks ansd sales tanks get lots of abuse and rotting leaves. This is a good routine to remove all that.
Vacuum the substrate once every 1-2 months.
do 1/3-1/2 of the tank each time.
High light plants(is there such a thing??) can be addressed in a sales tank by placing a glass slat(typically 3 going higher , front to back) to create a terrace. Many sales tanks use this set up design.
The rear might be 12", middle 7" and 3" of gravel in the front of the tank.
the light is set slightly towards the rear(reduces any front glass algae).
If the tank is 12" front to back, you should be able to get 2 rows deep in each terrace of the pots.
Anubias, Swords, etc are best grown in terrariums! Cheaper, less light, no algae, easy dosing, faster growth rates.
Anubias/swords are worth $ and many beginners/non plant folks enjoy them.
Also, you can fertilize the pots/Rock wool also.
If you soak jobes for 3 weeks in a shallow tray of water, add a tiny amount of soil, then allow the water to dry up, the result is NH4/Urea free sticks.
Add a 1/4 piece to each pot.
You can add KNO3 to the water to add more N and K+ also.
Regards,
Tom Barr