I had noticed these brown spots on the glass and sand in my 90 gallon reef for about a month now and did not think much of them until their number started to increase quite tramatically. I took a closer look (with a magnifying glass) and to my surprise these things were moving.
Please have a look at the the attached pictures and let me know if you have any ideas as to what these are.
tks/Ken
Please have a look at the the attached pictures and let me know if you have any ideas as to what these are.
tks/Ken