- Saltwater
- Additives & Treatments
- Aquariums
- Auto Top Off Equipment
- Books
- Chillers & Cooling Fans
- Cleaning & Maintenance
- Controllers & Monitors
- Dosing Pumps
- Filter Media
- Food, Supplements & Vitamins
- Fragging Tools
- Gift Cards
- Heaters
- Hydrometers & Refractometers
- Lighting
- Light Bulbs
- Media Reactors
- Medicine & Traps
- Overflow Boxes
- Plumbing Parts
- Protein Skimmers
- Pumps & Powerheads
- RO/DI Water Filters
- Salt
- Sand & Reef Rock
- Sumps
- Test Kits & Tools
- Thermometers
- UV Sterilizers & Bulbs
- Wavemakers
- Freshwater
- Air Pumps & Accessories
- Air Stones & Wands
- Backgrounds
- Books
- Chillers
- Cleaning & Maintenance
- Decorations
- Dosing Equipment
- Feeders
- Filters
- Filter Cartridges
- Filter Media
- Fish Bowls & Betta Kits
- Food
- Gift Card
- Gravel & Substrates
- Heaters, Meters & Gauges
- Light Bulbs
- Light Fixtures
- Medications & Remedies
- Plant Supplements
- Pumps & Powerheads
- RO/DI Water Filters
- Sealants & Epoxy
- Test Kits - Freshwater
- UV Sterilizers & Bulbs
- Water Care & Conditioners
- Pond
- My Account
- Continue Shopping
- Your Cart is Empty
PAR - Lighting
What is PAR? It stands for Photosynthetically Active Radiation. PAR is the measure of light available for photosynthesis. You will notice optimal PAR values listed on all photosynthetic coral pages under it's Stats > Lighting Requirement section. For more info on PAR meters, watch this video:
Tip: We understand this is an expensive piece of equipment you won't need all the time. May we suggest purchasing one with your local reef club or group of hobbyist friends. This way you all can pass it around when needed.
X