Aquarium Lights

Match fixture length and mounting style to tank dimensions, choose light intensity and spectrum based on tank type (low light for freshwater fish-only, moderate to high for planted or reef tanks), and check PAR/PPFD values for live plants or corals when available

Planted tanks benefit from full-spectrum LEDs with strong red and blue output and PAR/PPFD appropriate to plant species: low-light plants need low-moderate intensity, while demanding stem or carpet plants require higher intensity and 6500–7000 K or adjustable spectrum options

Excessive light intensity or long photoperiods promote algae; minimize risk by using appropriate intensity for your inhabitants, limiting daily photoperiod to 6–8 hours for most planted tanks, and combining proper nutrient and CO2 management

Look for adjustable intensity and spectrum, built-in timers or scheduling, ramping/dimming and moonlight modes, and reliable connectivity if using Bluetooth or Wi‑Fi; ensure the control app or interface is compatible with your device and easy to update

LED fixtures commonly last 20,000–50,000 hours before noticeable dimming; maintenance includes cleaning lenses from salt/condensate, checking mounting hardware and cables, and replacing lights or drivers when output declines

Budget lights are often available under $50 and can suit basic fish-only tanks or low-light plants, but they may offer lower intensity, fewer spectrum controls, simpler build quality, and shorter warranties compared with higher-priced models

Confirm the fixture is rated for aquarium use (water-resistant or splash-proof as needed), verify mounting clearance and support for the tank type, ensure power supplies and cords are positioned to avoid splashes, and check manufacturer guidance for saltwater vs freshwater compatibility