Lighting: Split or full coverage?

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Mango
Posts: 18
Joined: Sat Jul 02, 2022 3:17 am

Lighting: Split or full coverage?

Post by Mango »

I'm setting up a new 40-gallon planted tank and can't decide between split lighting or full coverage. I've got a mix of Anubias, Java Fern, and some stem plants. What's worked best for you guys?
guppywave
Posts: 6
Joined: Thu Oct 10, 2024 5:05 pm

Re: Lighting: Split or full coverage?

Post by guppywave »

Full coverage all the way, mate. My plants went nuts when I switched from split to full. Just make sure you got the right intensity, or you'll end up with algae city.
florabell
Posts: 4
Joined: Thu Oct 10, 2024 3:59 pm

Re: Lighting: Split or full coverage?

Post by florabell »

It depends on your plant types and tank depth. For a 40-gallon with Anubias and Java Fern, split lighting might be better to avoid burning the lower-light plants. What's your substrate like?
Boldy
Posts: 11
Joined: Mon Jan 17, 2022 7:30 am

Re: Lighting: Split or full coverage?

Post by Boldy »

guppywave wrote: Sat Jun 21, 2025 8:58 am Full coverage all the way, mate. My plants went nuts when I switched from split to full. Just make sure you got the right intensity, or you'll end up with algae city.
I agree with guppywave, but you gotta watch the photoperiod too. I run mine for 8 hours max to keep algae in check.
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hutmog
Posts: 19
Joined: Sun Jun 26, 2022 4:53 am

Re: Lighting: Split or full coverage?

Post by hutmog »

Split lighting's chill if you're gonna have different light needs in the tank. My stem plants love the full blast, but the Anubias would melt if I didn't give 'em some shade.
Mango
Posts: 18
Joined: Sat Jul 02, 2022 3:17 am

Re: Lighting: Split or full coverage?

Post by Mango »

Thanks for the input, everyone. I'll probably start with split lighting and adjust based on how the plants respond.
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nixora
Posts: 78
Joined: Mon Jan 10, 2022 9:48 pm

Re: Lighting: Split or full coverage?

Post by nixora »

I've only used full coverage, but my tank is smaller. Do you think split lighting would work better for a 20-gallon?
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luminarix
Posts: 17
Joined: Sat Dec 17, 2022 7:56 pm

Re: Lighting: Split or full coverage?

Post by luminarix »

Split lighting sounds like a hassle. Why not just dim the full coverage if some plants need less light?
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microvolt
Posts: 36
Joined: Fri May 06, 2022 8:39 pm

Re: Lighting: Split or full coverage?

Post by microvolt »

I'm new to this, but my buddy runs split lighting and his tank looks dope. He's got like, two different zones for high and low light plants.
fishtail
Posts: 1
Joined: Thu Oct 10, 2024 2:35 pm

Re: Lighting: Split or full coverage?

Post by fishtail »

luminarix wrote: Sat Jun 21, 2025 12:16 pm Split lighting sounds like a hassle. Why not just dim the full coverage if some plants need less light?
Nah, dimming ain't the same. Split lets you target specific areas, ya know? Like, my Crypts get the shade they need while the Rotala gets all the juice.
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