So, a few weeks ago, I made my first Co-op purchase in the form of an S. repens, a Water Sprite, and a Water Wisteria. Those latter two were purchased as potential floating plants which, so far, has been working with the Sprite, but the Wisteria melted completely away in about a week (which the Co-op was awesome in refunding me for my loss). Meanwhile, the repens I bought because I liked the idea of it is a very unique carpeting plant for my 10-gallon (I'm imagining a school of Corydoras or Sidthimunki Loaches cruising among the leaves - a very lower canopy, if you will). Anyway, the specimen I got is looking so nice in its little plastic cup it came in, I'm worried that my historically black thumb will rear its ugly head and kill the plant if I do anything to change its current setting (and consider getting a few more for the carpeting project).
Also, regarding those black cups and rockwool - is the prospect of becoming rootbound a valid concern? I've seen that the Co-op sells a decor piece that will fit one of these cups - they have an entire youtube video about them), But wouldn't such a decoration make being rootbound even more of a problem? Or will most plants' roots push through the rockwool and spread out on their own?