actinic lighting for coral color

[Majid]

I've been running actinic lights for a few months now, but my corals aren't showing the colors I expected. Tank is a 40-gallon with two AI Prime HDs, set to 12 hours a day. Parameters are stable, 8.2 pH, 1.025 salinity, 0 nitrates. Any tips?

[Flare9]

Yo, maybe crank up the blues? My Zoas pop way more when I dial in the blue spectrum. Also, how old are your bulbs? They can lose intensity over time.

[Snapdragon]

Actinic lighting can be tricky. What's your PAR reading? Corals like Acros need intense light, but softer ones like Mushrooms might bleach. I'd check your light's output with a PAR meter if you can.

[phillis79]

Yo, maybe crank up the blues? My Zoas pop way more when I dial in the blue spectrum. Also, how old are your bulbs? They can lose intensity over time.

Yeah, Flare9's got a point. My old bulbs were trash after a year. Swapped 'em out and boom, colors came back.

[Florin6]

Actinic lighting is more about spectrum than duration. Try reducing the photoperiod to 8 hours but increase the intensity during peak hours. Also, ensure your magnesium levels are around 1350 ppm, it's crucial for color expression.

[luminas]

I've heard some folks add UV LEDs to their setup. Does that help with color, or is it just hype?

[Majid]

Thanks for the suggestions. I'll try adjusting the spectrum and check my magnesium levels.

[Snapdragon]

I've heard some folks add UV LEDs to their setup. Does that help with color, or is it just hype?

UV can enhance fluorescence, but it's not a magic bullet. It's more effective when combined with proper nutrient control and stable params.

[Flare9]

For real, stability is key. My tank was all over the place until I got an ATO. Now my corals are chill and colorful.

[phillis79]

Anyone tried those fancy LED strips with customizable spectrums? I'm tempted to upgrade but don't wanna waste cash if they're sketchy.