Older radions

Have you considered halide? You can do halide for substantially less than your budget and it’s better light. The heat can be dealt with, I’m running 2X250s with no chiller, just fans.
 
I will look into it, what halide fixture would you recommend over a 30 gallon?


24"cube?

You could do a single 250 SE pendant you can find those for $15-30

I have a hammelton m58 ballest $20

New lamp once a year, this is well regarded and used bu many many people. There is nothing that will not flourish under this lamp. $20

https://www.lightbulbs.com/product/plusrite-02405/?source=ConnexityCSE


You will need thermostatically controlled fans for cooling and a ATO for evaporation but you should have those things anyway.
 
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