I personally love a tank full of ferns and mosses. Although your plant selection is limited, you still have tons to work with. I think with proper planning and experience it can definitely be done. A lot of the most stunning aquascapes have tons of narrow leaf java fern, crypts. , and aniubius. All of these do great with minimal maintenance. The biggest problem would be the time it takes to complete the scape though. It may be difficult to wait an entire year for a tank to start looking like you envisioned. I definitely couldn't pull it off though
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