Waterpurslane

Lighting: how long and how bright3 min read

How many hours the light should be on, why more light does not mean better plants, and how to avoid algae.

How to set up a Central American aquarium5 min read

Hard, alkaline water, sand and rock: an aquarium from the rivers and lakes of Mexico and Central America, with cichlids and livebearers.

How to set up a North American aquarium5 min read

Streams and ponds in North America are often cool. How to set up an aquarium without a heater, with pygmy sunfish, shiners and darters.

How to care for aquarium plants3 min read

Light, nutrients and CO₂ in balance, low tech versus high tech, and how to read from the leaves what your plants are missing.