I figured that it is highly variable, along with many other things in this hobby. So 2 inches would be enough? So does the depth of the sand have any correlation with how long a cycle would take?
Glad you started this post because I have the same question. I was told yesterday that 0-1" or 3"-5" is great but there seem to be problems if you use 1 1/2" - 2 1/2". I'm almost ready to start up my 240 gal so I think I'll go with 1" instead of 2" like I was going to do.
I just found this and though I would put it in. https://www.saltwaterfish.com/vb/show...ght=sand+depth
Well this should be no help! LOL!
Mine is on average 3 to 4 inches depending on the guys pushing or moving it from one side to the other. It never seems to stay in one place!
Moby