Nano cube lighting question. PC vs HQI

[Snaz]

HQI like all HID lamps require a very good ATO especially with a nano. Any budgeting and plans for this type of lighting with a nano must include an ATO solution.

[gobytron]

I run a 12 gallon aquapod with a 70W HQI sunpod and a 1/10 hp chiller.

My evap is almost non existent.

I run a glass top, but in conjunction with the chiller, never see temps over 78 degrees.

I top up with fresh about 1/2 gallon every 2 weeks.

I have kept EVERYTHING in this tank over the 6 years I've had it running.
I am surprised at just how bulletproof this setup is.

I found heat and evap with the stock hood and lights to be about 5 times worse than how I have things now.