I have some green cabomba that was just recently added to a 29 gallon tank. Many of the plants are growing roots from nodes above the substate.
Does this mean that the stem portion that is in the substrate has not taken and will die off? Should the plants be re-inserted into the substrate where the new roots are growing and the part of the stem in the substrate be cut off?
Thanks for any responses in advance,
All stem plants, though some more than others, produce roots from the nodes along each stem. These are essential to the plant's health, as these roots assimilate nutrients from the water as it passes over them. The roots in the substrate are primarily anchoring the plant stem.
On another but related issue, the portion of the stem closest to the substrate may lose its leaves; here again some plants are more prone to this than others. It is light-related. Less light reaches the bottom so the leaves tend to die off as the higher leaves are closer to more intense light. Most stem plants need to be pruned periodically; if the lower leaves die off, pull up the stems, cut off the upper bushier ends, and replant those.
As usual Byron, your comments and knowledge have been extremely helpful.
Thank you for taking the time to respond,
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