I think some people need to give it a rest, not every thread about lighting needs to become a LED vs whatever thread. Seriously not even close to what the thread is about yet here we are. The first post asks about 6 and 8 bulb T5 fixtures for an SPS tank and the last post talks about how LEDs hurt your eyes... I don't even know where to go from here, oh wait I know...
For an SPS tank 8 bulbs is obviously better than 6 but 6 won't be that limiting either. If you're looking for a used fixture then take your time and look for both, if you find a great deal on a 6 bulb fixture it might be worth while going that route and upgrading later if you find yourself limited as resealing it might not yield a huge loss. With T5s you also have the option of using a canopy and retrofit T5 kits (or just buying the parts separately) that way you can add to it anytime.
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