Save yourself some money and get a rubbermaid rough neck. I use one and its a better reservoir than my american hydro one that cost more than twice as much without a lid. they are taller which can be a problem for some setups but they are are also more slender so less fluid is required to remain in it during feeds so that your pump doesn't burn up. they are totally light proof and seal very well. they all clean a lot easier than the hard plastic shit normal rez's are made out of. slime and salt does not seem to build up on the rubbermaid material at all.