This is my first tank and I bought a used red sea reefer max e 170. I have been watching the BRS 5 minute series for beginners. They feature this exact tank and suggest using two mp 10s for the tank. Considering these will cost just as much as I paid for the tank I am having a hard time deciding whether I should get them or something a little less pricey. However, I like the design and the features they offer and most of the reviews seem positive. I was wondering if I could use one MP40 instead or if you need one on each side. Or if I should just go a different brand all together