So far so good

What's up everyone?
Good news
I planted 2 plants about 3 weeks ago
One is about a foot tall
Other is about 5 inchs
They get great sun light
I water everyday
I just would like to know what can I feed them?
Besides water
Thanks
Ill get some pics up later

Plant them into 2+ gal containers and only water once every 4 days feeding nutrients on a 1:3 schedule. (or something close).