If you're growing in coco you'll be fine. Just need to water more often if anything. And like Gentlemancorpse mentioned, make sure you'll fertilizing with every watering with coco, very important. Read up on growing with coco if you haven't already, cocoforcannabis.com is a great resource and...
Canna-cheese 1:1 is amazing and my favorite strain ever, if you can find it. Other ones I've personally grown or smoked that have been great are CDLC, Sour Stomper, Double Grape, Forum Stomper, Mango Smile and Forgotten Strawberries. Lots of great strains.
Also check out NightOwl Seeds for...
The plant will need a bit of N during the stretch and early flower phase. Once it's done stretching though then you can back off. How much exactly depends on the plant but I keep the N about the same throughout late veg and into early flower generally.