Guys when I set up my new 190 gallon tank I used my old live rock from my 135 but replaced the sand as it was around 2 years old. I have had nothing but problems out of this sand the entire time it has been in here. I have had diatoms spin e about 2 weeks in that will not go away. I have gravel vac it and hand stirred it. Even left it alone for 2 months to see if that would help. I can gravel vac it and wishing 6 hours I see a light dusting back on the sand. The rocks have no visible diatoms. I am 100 percent sure it is not dinoflagellates. Anybody have any suggestions. It is really starting to pi$$ me off.
Parameters are here
Alk 8.5 Hanna
Calcium 420 Hanna
Magnesium 1380 salifert
Po4 .026 Hanna
Nitrates around 5ppm. Maybe less hard to tell with the Red Sea test
Have a huge skimmer that pulls out nasty gunk and a good amount of flow. Any ideas would be appreciated. A;most to the point of syphoning it out and starting over. It is Carib sea 2mm special grade. Bought it as a live version. Thanks.
Parameters are here
Alk 8.5 Hanna
Calcium 420 Hanna
Magnesium 1380 salifert
Po4 .026 Hanna
Nitrates around 5ppm. Maybe less hard to tell with the Red Sea test
Have a huge skimmer that pulls out nasty gunk and a good amount of flow. Any ideas would be appreciated. A;most to the point of syphoning it out and starting over. It is Carib sea 2mm special grade. Bought it as a live version. Thanks.
