What is everyone's thoughts on using plasticized vinyl tubing? Any danger to livestock? I know PVC is safe (this tubing is polyvinyl chloride) but the plasticizers (what gives tubing flexibility) concerns me. This is the product I purchased which says it can be used for aquariums but I am not so sure? I am troubleshooting a mature planted freshwater aquarium crash which happened withing 6 hours of using this tubing.....along with one other change I had made. Trying to figure out the cause of the crash.
www.menards.com

Sioux Chief 1/2" ID x 3/4" OD x 10' Clear Vinyl Tubing
This 3/4" OD x 1/2" ID x 10' clear vinyl tubing is made from plasticized polyvinyl chloride and has the flexibility of rubber and the clarity of glass. The smooth dense bore maximizes flow and reduces sediment buildup, and handles a wide variety of chemicals, gases and liquids. It is resistant...
