I filled up my sample bottle with water yesterday and it was super cold so I let it sit and forgot about it until this morning. Is the sample still good to test? I could go and get a fresh sample but the water has a tiny bit of ice on the surface in the middle so I don’t know if it’s too cold. Plus I wanted to test the CYA and I know that test is sensitive to cold water. I know this is a dumb question but I couldn’t find it in the search bar lol. Thanks in advance!!