I see a large drop in ORP following a water change.
Question: Is it caused by a sealed container?
Back ground: I currently mix up about a months worth of salt water (for water changes) at a time. I am using tropic marin pro reef mix and RO/DI water. The mixture is stored in a brute trash can with lid. Seem to be fairly tight fighting with power-head and heater cords.
Anyway, I do a water change and see a 90 point drop. About 30 points right away, and then a continued drop over the next several days for a total of about 90.
Any Ideas?
I have seen several similar posts, but nothing that really addresses this issue.
Thank you for your time!
Question: Is it caused by a sealed container?
Back ground: I currently mix up about a months worth of salt water (for water changes) at a time. I am using tropic marin pro reef mix and RO/DI water. The mixture is stored in a brute trash can with lid. Seem to be fairly tight fighting with power-head and heater cords.
Anyway, I do a water change and see a 90 point drop. About 30 points right away, and then a continued drop over the next several days for a total of about 90.
Any Ideas?
I have seen several similar posts, but nothing that really addresses this issue.
Thank you for your time!