Frequently Asked Questions

Below are some of our most frequently asked questions. Simply click on the question to reveal / hide the answer.


What size fixture would work best for my tank? +/-

There are general guidelines for sizing which can be found on the product descriptions for each fixture. Generally, the sizing is according to Tank Volume, Tank Dimensions, and the type of livestock in the tank. We would recommend to contact an Authorized ATI Dealer for specific recommendations for your tank.



What bulb combinations do you recommend? +/-

Here's a some of our customer's favorite combinations. We have found most folks prefer a bluer look to their tank as it helps to bring our more colors in their corals. Please remember that bulb choice is ultimately a matter of personal preference and what works for one, may not work for another.

16K - 20K - Bluish white with a noticable blue and red under-tone

4-Bulb combination
  • 3 ATI Blue Plus
  • 1 ATI Purple Plus
6-Bulb combination
  • 4 ATI Blue Plus
  • 1 ATI Coral Plus
  • 1 ATI Purple Plus
8-Bulb combination
  • 5 ATI Blue Plus
  • 2 ATI Coral Plus
  • 1 ATI Purple Plus
10-Bulb combination
  • 6 ATI Blue Plus
  • 3 ATI Coral Plus
  • 1 ATI Purple Plus

12K - 16K - Cool white with a noticable blue and red under-tone

4-Bulb combination
  • 2 ATI Blue Plus
  • 2 ATI Coral Plus
6-Bulb combination
  • 3 ATI Blue Plus
  • 2 ATI Coral Plus
  • 1 ATI Purple Plus
8-Bulb combination
  • 4 ATI Blue Plus
  • 3 ATI Coral Plus
  • 1 ATI Purple Plus
10-Bulb combination
  • 5 ATI Blue Plus
  • 4 ATI Coral Plus
  • 1 ATI Purple Plus

10K - 14K - Crisp white with just a hint of blue

4-Bulb combination
  • 2 ATI Blue Plus
  • 1 ATI Aquablue Special
  • 1 ATI Purple Plus
6-Bulb combination
  • 3 ATI Blue Plus
  • 2 ATI Aquablue Special
  • 1 ATI Purple Plus
8-Bulb combination
  • 4 ATI Blue Plus
  • 2 ATI Aquablue Special
  • 2 ATI Purple Plus
10-Bulb combination
  • 5 ATI Blue Plus
  • 3 ATI Aquablue Special
  • 2 ATI Purple Plus


How does ATI compare with other brands of fixtures? +/-

ATI Fixtures were designed for the serious hobbyist that requires a high performing fixture to meet their needs. Depending on certain factors, ATI will outperform most other brands by at least 25% and in many cases 50%.



Is it possible to mount an ATI Fixture with Legs or Mounting Brackets? +/-

Currently there are no available Legs or Mounting Brackets for ATI Fixtures. We would recommend to ONLY hang ATI Fixtures and NEVER place your ATI fixture directly on top of your tank.



What is the warranty on ATI Products? +/-

The standard warranty on light fixtures and protein skimmers is 1 year from the original date of purchase. To request warranty service or support, please contact us.