Aquarium Algae Problem? Your Light Settings Are Probably the Culprit

Exact Chihiros WRGB2 Slim light presets you can copy for any planted tank—Low-Tech, Shrimp/Caridina, CO₂, and High-Tech. I show the real slider values (W/R/G/B), safe durations, and a simple 10% tweak rule to avoid algae. Copy these WRGB Slim 2 presets • Low-Tech (new, wks 1–2): 6 h, 45–50%, R45 G60 B35 • Low-Tech (mature): 7–8 h, 50–55%, R45 G60 B35 • Shrimp/Caridina: 6.5–7 h, 45–50%, R40 G55 B30 • CO₂ (moderate): 7–8 h, 60–75%, R60 G65 B45 — CO₂ on 1 h before lights, off 1 h before lights out • High-Tech/Reds: 7 h, 75–85%, R75 G65 B45 Safe tweak rules 1 - Change one thing per week (brightness ±10% or duration ±30 min). 2 - If algae shows up, reduce duration first. 3 - Raise the light 2–4 in to stop hot spots; keep a gentle surface ripple. 🌱 More Aquascaping Tutorials:    • Do THIS Weekly to Have a Spotless Aquarium!   🦐 My Favorite Shrimp Tanks:    • Caridina Shrimp Care: Everything Beginners...   🎥 Subscribe for beginner aquascaping:    / @aquascapeodyssey   Timestamps: 00:00 - Intro 00:54 – The hierarchy (intensity ➜ duration ➜ spectrum) 01:17 – Spectrum myth-busting 01:50 – How to copy presets safely 02:38 – Preset 1 03:16 – Preset 2 04:09 – Preset 3 05:07 – Preset 4 05:40 – Matching plants to light (quick guide) 06:15 – Brand crosswalk (Fluval 3.0 + white-only) 07:30 – Troubleshooting flow 08:18 – Weekly adjustment template 08:38 – Advice/Recap #aquascaping #plantedtank #chihiros #wrgb #aquariumlighting #shrimp #lowtechtank #hightech #co2aquarium #AquascapeOdyssey