Hi platies, hope you're well.
Eco is a substrate that readily absorbs nutrients for the plants to use. It's call having a high cationic exchange capacity (CEC). It doesn't have a lot of nutrients by itself. The plants you just listed are all heavy root feeders as well as getting some ferts through the water. It is important for these three types to have root tabs under them. They will do so much better.
The latest tabs I just bought that I really like are the same kind Fresh2O uses. He put me onto them. You get 75 tabs to a bottle and you can order tabs called Total, Traces, & Iron, etc. They also offer a neat pellet applicator that lets you insert the tabs without getting wet: They are made by Aquafertz.com. You get 75 pellets for $10.99. Applicator is about $17. Hope this helps. OS.