OK, so I'm scrapping my waterfarm idea and am building a RDWC for half the cost. Found a setup I want to go with and have all the pieces except for the 5 gal buckets. Here's why, does the color of the bucket matter? I have seen most people using black ones which make the most but the black ones at Home Depot are $15 vs $4 for the blue ones. Looking to cut corners wherever possible one $$ but will I regret not having a black one? If I wrap the bucket in mylar will it matter?