Carlos,
It would be interesting to see how the Plant Finder database is designed. Specifically, what fields are allocated to each entry.
I would like to see the ability to query based on <water hardness> or <GH/KH parameters>. I might be living in a soft water zone and looking for more plants suitable for the local water. I hope that each plant in the database has a field for hardness parameters.
Everyone has differing water chemistry and aquarium environments, but allowing for that a clearer suggestion of nutrient requirements would be helpful. It might be hard to have different fields for NO3, PO4, TE, etc etc, but if we could have the nutrient requirements for each plant detailed in the same position on the page it would be easier to locate. If there are no special requirements as regards nutrients, then perhaps state: <No special nutrient requirements> as a placeholder.
Otherwise, I think this is a great project which has already proved useful to me. The photos are usually helpful. The layout is good enough for my purposes. The navigation works for me.
Andrew Cribb