A low-tech aquarium is a planted system model operating with low light, limited carbon, and controlled nutrient input, targeting maximum stability rather than maximum growth. This guide examines lighting, CO₂ balance, fertilization strategy, and plant selection within a technical framework.

A technical guide to controlled light management in low-tech aquariums, covering spectral balance, PPFD targets, and style-based RGBW presets for Blackwater, Epiphyte, Natural, and Riverbank setups.