Many plants that are usually green will turn red under high intensity light with the right concentration of ferts in the water column. I would suggest however, that possibly increasing your Fe once a week and you may notice an increase in this phenomenon...
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Ehiem Pimp #182
All ADA 90P Tank, In/Outflow Lily Tubes & Check Valve, Ehiem Pro II 2126, 36" Current USA Outer Orbit 1x150W 10K HQI-MH w/ 2x96W Dual 8K CPF, 18W Helix UV Sterilizer, 5lb. Pressurized CO2 w/Mikwakuee Regulator
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