my nep. ventr. just got here! it has baby pitchers about 1- 1 1/2" high, do i fill them each about half way? also, there are 2 pitcherplants sold here with a picture, one without a picture, i want to order the gracilis, how large do each of these plants get? i have the other pictured nep. already in a order here to, lol, so , water filling, and size comparison, oh yeah, what about filling with superthrive water?, thanks for any or all the info. on these beautiful plants!