One of the nicest cover plants for wood or rock is moss. Mosses are low-moderate light too, and CO2 is not necessary. I have Java Moss (Taxiphyllum barbieri), and quite regularly, say every 4-5 weeks, I have to pull off and toss out chunks of it. This is a highly irregular moss that in its growth pattern can take the form of tree branches, long loose strands, and straight branches. Some surmise that the moss varieties known as Christmas Moss, Willow Moss, etc. may actually be variants of, or even the same as, the subject species.Thanks for the advice guys. I will wait on carpeting til I know what kind of lighting my system has. As I have not started to fertalize anything yet, I will get both the pellets and liquid ferts as it seems like I will need different types for different plants. I'm going to try to save my micro swords which are indeed the lilaeopsis brasiliensis.
What type of plant would the Poobahs, grand or deputy or likewise, suggest to cover the lava and/rock or driftwood? It has to be something not too complicated, of course.
Propagation is by breaking off chunks and positioning them wherever you want the plant to grow. It attaches itself to object with root-like structures known as rhizoids; these do not assimilate nutrients, which occurs through the tiny leaves. Regular liquid fertilization will improve its growth.
In much of the literature Java Moss is described as Vesicularia dubyana, but this scientific name actually belongs to another very similar plant known as Singapore Moss. It is the subject species, T. barbieri or Java Moss, that appears to be the most widely available in the hobby. However, common names are not official and may in fact be applicable to any of several different species depending upon who uses the name.
Alternatively, if you want more substantial plants, Java Fern (Microsorum pteropus) and Anubias (which has several species) are suitable. These too are low to moderate light. Being slow growing, CO2 is again not necessary.
Byron.