Giant Marimo Moss Balls - Live Aquarium Tank Plants Low lightNo pesticides (1"-1.4" x5 + 3 Free)

Just received my marimo moss balls i bought 2 of these sets and 3 of the moss balls were brownish and noticeably had white that looked like mold on them. And there were another 3 that were also showing signs of white but not as clearly. Also when i put these in the water the water turned brown and cloudy idk if this is normal but it makes me uncomfortable to be putting these in with my fish so for now i have them on the side. Also there was some sort of small white crystal thing idk what it is but it seems to be dirt or sand. Other than these few issues the moss balls i got seemed to be in good condition.Will update in a week.