Vho lighting question - Bulb selection and duration

S

Steven

[I currently have 2 140watt VHO bulbs lighting my aquarium. I plan to add two more 140 watt VHO bulbs to have a total of 4.

I'm currently using 1 URI Super Actinic and 1 URI Actinic White.

I need some suggestions for bulb combination when I have 4. Should I have 2 Super Actinic and 2 Actinic White or other combinations with different bulbs?

Also, I currently change the bulbs every 6 months. If I end up having 2 Super Actinic and 2 Actinic White bulbs could I change out 1 each of the bulbs every 6 months. This would mean that one set of bulbs would be used for 12 months.

Thanks]
 
[I prefer the 50/50 look in the tank. So I'd get 2 of each bulb if I were you.

I always replaced them at 6 months as well.]
 
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