Join Date: Feb 2004
Location: Calgary, Alberta, Canada
Way back it was easier to keep plants that are used often in low tech setups. The harder to keep varieties that thrive with co2 injection wouldn't have done well before co2 was used. That was waaay before I was born though.
Swords, crypts, anubias, etc would have been common as well as easy to keep stems. New types of plants are brought into the hobby all the time. Many plants may now have been available 40+ years ago.
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