AdAndrews said:
i wish to have a mix of stems in my nano
so I'm guessing max height of about 30cm?
i think for a small tank even up to 36cm like a usual 60x 30 x 36. there are numerous small leaved stems to choose from.
GREEN
easy ones IME would be Micranthemum umbrosum. it grows at will under good conditions, but can be a tank buster. i trim mine heavily. it also like to invade into space not vertical but horizontally.something to watch for. it's the plant on the right hand side in autumn blush.
GREEN
another is Hemianthus micranthemoides. a little more demanding, but again can be grown into a good bush. (front left autumn blush)
PINK/RED
for the red's id say r rotundifolia. it's dead easy to grow. and responds well to trimming.
DARK RED
ludwigia arcuata. this seems to be a steady stem. I'm still learning my self with this one.a bit more tricky than r rotundifolia.
RE tropicas recommendations, i think they try to describe best where certain plants should be placed within a scape and they are pretty much on the ball, although most will grow bigger than suggested.