Freshwater
Piedmont primrose-willow
Ludwigia arcuata
Onagraceae
Ludwigia arcuata
Onagraceae
How many hours the light should be on, why more light does not mean better plants, and how to avoid algae.
Streams and ponds in North America are often cool. How to set up an aquarium without a heater, with pygmy sunfish, shiners and darters.
Light, nutrients and CO₂ in balance, low tech versus high tech, and how to read from the leaves what your plants are missing.