the peice of glass was hacked out of an old cfl bulb - plastic tubing attached and plugged into the water pump
pump submerged in ice water - and left to re-x after the pic was taken as a test run for a foto shoot soon
if one had a alcahol proof pump or could make the water salty or somehow unfreezable - then the resevoir could be placed in the freezer
the point was to get the xtals to grow off the bottom without using a grid and dropping in the seed xtal at exactly the right time - i usually put the seed in to early to this takes care of that.
pump submerged in ice water - and left to re-x after the pic was taken as a test run for a foto shoot soon
if one had a alcahol proof pump or could make the water salty or somehow unfreezable - then the resevoir could be placed in the freezer
the point was to get the xtals to grow off the bottom without using a grid and dropping in the seed xtal at exactly the right time - i usually put the seed in to early to this takes care of that.