The PDF file didn't translate to English but I think it is still readable. I have tried adding three peppermint shrimp but I never saw them again after the first night. Same thing happened with a candy cane shrimp a couple of months later. Corals seem to do okay. I have had a couple acans die and a chalice but then have other acans that are doing fine. I realize the issues that high phosphate and low nitrates can cause but would low iodine or anything else on the test affect shrimp or corals? Thanks for any help.