You don't need a lot of supplement for TB.
I highly recommend Aquasoil Amazonia and undergravel filter. It's the best and most effective soil for breeding TB in my opinion.
There are several substrate additives you can choose from:
ADA set: Bacter 100, Tourmaline BC, Clear Super
Mosura: BT-9, Old Sea Mud Powder
Benibachi: Bee Max, Bee3, Mironekuton Powder
Borneo Wild: Humic, Minerax
I'd recommend just feed them fresh blanched spinach, frozen blood worm and straw pellet.
Here is a good example from friend of mine 楊正隆 - a pro breeder in Taiwan.