I was reading the lighting thread. I looked up this lamp, but it has several variations in the wattage I can use. Specifically, OSRAM HQI-DE70/WDX and OSRAM HQI-DE70/NDX $50.00. Is one preferable over the other? Should I go for higher wattage, such as the OSRAM HQI-DE-150/WDX $39.95 or is this one not as good in some way? I've never researched the Osram lamps, sorry. Plus I can see right now that the thinkinking is that my 60 gallon tank is far too small, right?

Roger

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