Cory, MarinePure is inert and doesn't release Aluminium and this has been proved, the instances of aluminium showing up on a Triton ICP test is not proved to be caused by MarinePure and there is nothing to say it is not coming from anything else within the system and could well be from using a Alum based Phosphate remover at some stage. Also there is very little active bacteria in the water and how can it be on the glass I clean mine.
MarinePure is a need if you don't wish to have masses of Live Rock in your system and with the big block will and does reduce Nitrates. Why would you want to rely on dosing your system with Vodka? Personally I'd rather sit down and watch my balanced system and it's live stock with the vodka in a glass that I can hold to my lips and drink! Cheers to you all.
Vodka is a missing ingredient in reef tanks, well carbon is. If bacteria was so efficient they would keep up, but they dont. Why? Because our tanks are tiny compared to the food we put in. So they need a little help. With 5ml of vodka i can make more bacteria in the water, than this porus stone can hold. But this is an advanced method and not reccomended for new reefers.
Its part of my reef ethics not to put anything metal in my tank. It might be inert, but ive seen triton tests with marine pure having elevated aluminum. Try and make a rock that is calcium based. Id put that in.