I have a 55g with 5 3inch rbps in there. I have 3 amazon sword plants in there also. Both fish and plants are doing nicely. However, I read that swords reproduce by sending out a runner. When I read this I imagined a little vine snaking out on the gravel and growing roots. Well, now I have a huge straggly looking trunk that grows straight up almost to the top of the tank with a few very small leafs on it. Is this thing a runner or is it trying to send a shoot to the top of the tank to flower? Thank you for any input.