I'm currently using it to cycle my 10-gallon. It's in a little plastic can and is in powder form. It's supposedly full of nitrifying bacteria. Does anyone know how effective it is?
I tested my water today (tank is 5 days old now) and my ammonia and nitrites are high, but not nearly as high as I thought they would be.
My PH is only about 6.4, though. Don't know why, either. I tested my tap water and it's in the high 7's. I guess I need to do some water changes and see what happens.
P.S.: I use a Red Sea test kit. Is this one pretty good?