I want to use java moss to cover the substrate in my aquarium (10 gallon w/ medium-sized gravel). Would it naturally spread out over the aquarium, or would it grow into a ball which I'd need to "train" to spread out?
i've got java moss growing on sand. All i did was spread some out and then lay some sand on top of it to anchor it down. It's only been about a month and I already had to clear some of the new growth out, so it's growing very well with sand