Greetings, I've created numerous water features on, dare I say?, Model Railroads. There are many ways to approach the subject depending on several questions. The depth of the water, is the water flowing?, If it is flowing, how fast. Is it a clear stream or a murky pond,etc. The trickiest to create convincingly is a fast flowing stream or river. The easiest is a clear, still lake or pond. I create my water feature as I do the rest of my scenery, with ground cover and details such as limbs, plants on the banks and debris in the water. I prefer a two part epoxy called Envirotex. It is clear, (can be tinted with most any paint) and is nearly odor-free. It takes about 12 to 16 hours to dry, but the lack of noxious fumes is worth it. Remember to mix it exactly 50/50! Deviation will create a sticky mess that never cures. The product can be found in craft stores. The envirotex also must be poured in no more than 1/4" layers. if you want more detail, e-mail me
[email protected] and I'll try to answer specific questions for you. Good luck, Scott