Quote:
Originally posted by Double-Camp:
Along the lines that using a kiddy swimming pool for a fish tank/holder is a no-no due to the chemicals (gasses ?) it emits, does Polyethylene Film (standard visqueen) pose any problems as far as the fish's health is concerned? I searched and did not see where this product has been addressed as a solution to helping with water loss (ie: leaks). My wonder about visqueen comes after pricing regular "pond liner" material. Ouch!!! if you do want good pond liner though, try http://www.watergardencreations.com/main/index.asp

Tnx
According to "Small Scale Aquaculture" by Steven VanGorder they use swimming pools with liners all the time. However they "acclimate" the liner before using it with fish. One method is to scrub it with detergent and rinse well, another was to lay it in a pond for a while and allow to sit there. Allowing it to sit in water for a while was a big part of it.

As far as the plastic you are talking about, I did use a similar plastic that I purchased from a Greenhouse supply company for a small 25 by 30 holding pond that was seeping. I was assured by a fish farmer it was nontoxic. However it did get
punctured by my diffuser when I set it in place and the pond then continued to seep.

In retrospect one of the big negatives for me using liners is the lack of natural nitrification at least initially -- you get with an earthen bottom pond. I ended up using the "sprinkle" method with betonite for this small holding pond, and it worked out much better and was less expensive. The holding pond no longer exists as it is now part of a much larger pond.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.