I will give advice about rezblock (and cranberry liquid extract)
Do yourself a favor, and do not let it sit there as decoration unused for more than a couple of days.
It will begin to "spoil".
when you swirl it you will see cloudy clumps.
Don't forget that the extract is organic, and it's only preservative is citric acid.
I mixed rezblock and water in a hydratube, and did not use it for a week, and since the hydratube is self enclosed, it was a good deal of work to get it cleaned up.
(You remember that day, when I called you t-dub!)
I now use open bong, which makes cleaning easy...
My point is; avoid leaving rezblock in a water piece, sitting unused for too long.
Too long has proven here... to be 4 days or more!
How to check;
Swirl the water, and if you see cloudy clumps moving around, that is the solution spoiling.
How to avoid;
Change solution regularly.