Theres a product I consider superior to Envirotex and Woodland Scenic's offerings regarding the end results. Its known as "Magic Water", not very long on the market but quite an improvement over previous products. No "smell" and no "bubble" problem. And it does'nt move under adverse conditions that some have mentioned.
When it first hit the marketplace a couple of years ago, I ordered some directly from them rather than waiting for it to show up at my LHS.
I have no connection with the company, just appreciate their technological improvement.