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What is more important: lumens or CRI?
Please, share your insights with me.
Where I live I can choose between two kinds of Philips 58 Watts tubes.
The 900 line with a CRI of 98 (ninety eight) and a lumens of 3700 for
instance with a K of 4000, 5000 of 6500
The 800 line with a CRI of 85 (eighty five) and a lumens of 5200 with the
same possibilities for K.
I can have 4 tubes of 58 Watt in my heavily planted tank.
Any ideas of the best combination of tubes? I do not use CO2 injection.
Sietske Tol at wj.spoel at hccnet_nl