themartins
Aquarium Advice Freak
Hi There! We have a Coralife T-5 HO 4 bulb fixture (only 3 years old) and the 2 actinic lights are not coming on. The unit is plugged in properly. The 2 bulbs in the white placement are working fine, and the 2 lunar blue LEDs also work fine. The 2 bulbs in the actinic placement are not working, but the fan that comes on when those bulbs are on is working fine. Can anyone please troubleshoot the problem for us?