Enough light?

[sumadis]

I have a 120 gallon tall tank with plants. I currently have a coralife t5 ho fixture with 10,000k and 6700 k lights and a Helios II fixture with a 6500k bulb, is this enough light to upgrade from low to mid light plants?


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[Brian_Nano12g]

How many inches is it from light source to substrate? Are you going to start pressurized co2 or liquid carbon dosing (ie. Excel or Glut)?

 

[sumadis]

The lights are close as they can go, roughly 2 ft from substrate. I use liquid CO2 and fertilizer once a week.


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[Brian_Nano12g]

Well ~24" is rather far for light to travel. I'm also unfamiliar with helios. Is that also a t5? How's the reflector quality? Either way, let's say you reach 30 or more PAR (= medium light), you'll also need to bump up your fertilizer regimine and carbon supplementation. If you're willing to continue down this path, I'd recommend looking into dry ferts (i.e. pps-pro) and glut dosing (i.e. metricide 14).