Here You record the plants that are in your aquarium:
Date: when You insert them in aquarium.
Name: Name of the specie selected from list (that came from PlantBase table).
Qty: the qty that are in aquarium. Sometimes You can really count them so it's a summary number.
Initial status: Some info on how they appear when You bought them or on how You plant them and so on.
Notes: any note on these plants