When it comes to the most basic requirements, growing algae requires water, light, carbon dioxide, nutrients, and suitable temperature conditions. The type and amount of each factor depend on the species being cultivated, with some thriving in freshwater and others in saltwater environments. Light is essential for photosynthesis, which drives algae growth, whether from natural sunlight in outdoor systems or artificial lighting in indoor setups.
Carbon dioxide serves as the main carbon source, either from the atmosphere or injected directly into the water. Essential nutrients include nitrogen, phosphorus, and trace minerals, all of which must be balanced to promote healthy growth without encouraging contamination. Temperature control is also important, as different species have specific temperature ranges where they grow best. Proper mixing and aeration help distribute nutrients and gases evenly while preventing algae from settling or clumping. Clean water, free of harmful contaminants, supports healthy cultures and reduces competition from unwanted species.
