Agree. Keep it simple, and nothing could be simpler. Fertilize the plants appropriately, in a new tank there are scarce nutrients, and they need food. Once they show signs of growing, you're done. Floating plants are highly advisable because they are fast growers. A comprehensive liquid fertilizer (either of the two Naughts mentioned) and for the two swords in the back on each side, Flourish Tab or the TNC tab, one for each. Floating plants will be the first to show good growth. I would wait a few days, and when you see this, in go the fish. As this is your first plant method, go slow, but always add the entire intended number of a shoaling fish you intend.