- Joined
- Aug 30, 2019
- Messages
- 2,174
- Reaction score
- 1,544
Curious how long the hose was exposed to your water. Did it sit in it for a longer period of time or did it leach out really quickly?I was fighting with tin for last 6 months. SPS were slowly dying, all home tested water parameter were fine. ICP confirmed high level of tin several times - 0.17mg/l, 170 ppb. I bought new thermometer sensor, new heater, new pump…corals kept dying, new ICP tests proved high level of tin. I decided to change 40% of water volume every two weeks. No improvement. I discussed possible causes with local fish store, people in local forums, read all articles about tin, no help. I had bad dreams, being very tired from this hobby. Then I met a friend who is working in chemical industry and he introduced me to chemist doing a research for large chemical factory using their own icp machine! In my home town! First, we did 5 tests to isolate the major source. We tested RO, new salt water, balling parts, tank water…tin was in fresh salt water and in the tank of course. Then we did another set of tests for all items used in the process of new salt water preparation - white plastic 50l barrel, eheim pump, hose, salt…all soaked in the bucket with about 3 liters of RO water. The test results were very clear - my 6 month nightmare was caused by 130cm of green hose!!! Tin is used as a softener in PVC. It was the hose that came with
aquarium syphon gravel cleaner
I hope my story can help many of you!