Chongqing Veniceton Manufactory is located in Chongqing city,China.Our products have water storage tank, pillow tank, Onion tank , water bladder ,fuel tank ,fish tank and etc...We mainly produce TPU/PVC water tank.polyether TPU is food grade, suitable for people drinking.polyester TPU is suitable for store fuel, like diesel ,gasoline, oil and etc.PVC is suitable for animal drinking, irrigation, farm and so on.The capacity have 250L -500000L ...And please know we can accept customized.About Fish farming tank:PVC pipe accord with national standard used for fish farm, aquaculture, and koi show.Easy to assembleMovable and transferable to anywhere you want!No more breaking your back moving bulky and heavy through tanks!Nontoxic, food grade, UV resistant, ant oxidative, thermostable, cold resistant.Stretch-Proof, resistant to stripping, antibacterial, acid & alkali resistant.Durable and Non-Distortable3-ply nontoxic rubber synthetic fibre PVC with screen mesh for added protection.In case of accidental, ex. knife puncture etc. repair kit is availableIt can house various fishes like barramundi / silver perch /mulloway/ koi / snapper / eel / golden perch/sleepy cod /catfish.