propylene glycol

[matt01165]

http://www.amazon.com/Propylene-Glycol-Food-Grade-Quart/dp/B005PZBRUC

  Is this the right stuff to make the water less dense so the lava will flow easier?

[matt01165]

how much are we supposed to use?

[Carol]

I honestly never messed with prop when I did my fluid changes.  Just dish liquid, magic bubbles, Epsom salt, sea salt, and distilled water.  Then I even tried alkaline water from my special machine, all to no avail. All my lamps reclouded up.....someone on here probably will help you out with the prop though.

[Keith]

It makes the water more dense, the more you use the easier the wax floats.  I redid a grande recently and used too much.  The COLD wax rose to the middle of the globe!  Trial and error for the right mix, maybe less that 1 part in 8 (1 ounce to 7 ounces of water).  But even that may be too much.

[Innotic]

Works for me, as well as glycerine. It'll never cloud Your water unlike table salt solution I think.