looks great LB
what is the name of the mossy plant carpeting its way around the front of your tank on the right?
your pic is making me nostalgic for the 4 footer I had years ago before I moved abroad...had some cracking big Angelfish in it, and an expensive discus genocide come to think of it.
The carpeting plant is Hemianthus callitrichoides or for short its called HC
No you don't- plants will grow quite happily without water agitation and once the plants are thriving the water will not become stagnant
No - actually adding plants will help the tank to cycle faster
For loads more info on filterless planted tanks have a look at this website http://www.aquaticplantcentral.com/forumapc/el-natural/26458-what-el-natural-step-step.html