Jereli
Aquarium Advice Freak
Ok so for quite some time I been battling this issue on my sand bed as you see in the picture. In the beginning my phosphates were 0.25 and nitrates 0. But since then I have added a phosban reactor. Now Phosphate 0 nitrate 0. All other parameters test good. My question is.. other then phosphate and nitrates, what else can cause something like this on my sand bed. I have posted previously on this issue and I was advised that it was my phosphate which are now at zero. Any ideas