bump, would love to see what people have done with there jbj 24s lighting upgrades if theres any out there. Really trying to keep the closed top which seems to be making all the cheaper upgrades (sunpod, sundial, etc..) not an option. hmmm
there are such better brands of mh than current either the pendant or the sundial as in quality but for a 24g nano they would be just fine. try looking into t5ho if you want they are good, like a tek t5 system if they make one that size. and personaly i would hold off on the sps until you upgrade the lights.
do you have a way of keeping the tank cool ? if you got the retro kit that fits in the hood expect dramatic rise in heat. you might look into a small chiller, what all other equiptment do you have ? i have the current 20" 6 bulb t5 on my 24g ap, which isnt really needed since i have no corals and the tank is for my seahorse's, tank looks nice btw, and slow down on buying corals, let the system settle in some
"They" say to use diffuser plates over the tank...I dont bother though, I just place the new lights on...keep an eye on stuff for 1 week, if you see bleaching then you need to worry about it...you should be fine with only 150w MH....good luck
meteor shower leds only.