Sounds good. As long as algae isn't a problem,and the plants are growing,I wouldn't bother with root tabs.The Flourite will provide enough nutrients for quite awhile( a year or 2).And if the Flourish is working for you,I would stick with that.
I use Seachem Excel in my low light planted tanks that do not have pressurized CO2.It's just liquid carbon.I find it helps the plants quite a bit,and keeps algae at a minimum.
If you ever make the jump to pressurized CO2,dosing with dry ferts is the way to go.It will save you a ton of $$$.
I'm by no means any kind of expert when it comes to keeping plants,but I have had pretty good luck in keeping planted tanks.Just don't take anything I have said as some kind of rule,or something you should do.Just giving my 2 cents.
Good luck,post pics when you have it planted.