I'm new to the hobby and am looking to start a mixed reef tank. How do the waterbox lights compare to kessil's? For the money, which would you pick? Also, my house is not on a concrete slab, it has a crawlspace. At what point should I worry about tank weight? Since I'd like to be moving towards a tang tank, I'm looking at around 150 gallons. I'm worried that I will end up too heavy. I've seen some back and forth about being able to keep tangs in 80 gallons, and I know that it depends on the type of tang, but the 150 gallon tanks become prohibitively expensive. Any thoughts?