- Joined
- Mar 25, 2018
- Messages
- 2,457
- Reaction score
- 2,193
- What state or country do you live in
- Arizona
I see mostly dinos and a few diatoms. The round shape and being in the sand leads me to thunkniys amphidinium dinoflagellates which does not respond to normal treatment methods. I had to remove all my sand to rid my tank of it. Sand removal is the most effective method of treatment for amphidinium. Increasing no3 and and po4 to 10-15 ppm and 0.10-0.18 will help prevent other types of dinos for tanking hold.







