I'm a bit confused on the CaribSea A.R.M. calcium reactor media sizes.
On marinedepot.com, it only has "original" and "coarse". Wasn't the original one the "small" or "fine" one? Anways, regardless, the picture it shows for original is obviously large, and it states 2-3mm. It has no size description for coarse.
On BRS.com, it has all three.... small, large, and "extra coarse". But the description for both Large and Extra Coarse states 2-3mm.
So I guess my question is... if large is 2-3mm, what is the coarse/extra coarse?
On marinedepot.com, it only has "original" and "coarse". Wasn't the original one the "small" or "fine" one? Anways, regardless, the picture it shows for original is obviously large, and it states 2-3mm. It has no size description for coarse.
On BRS.com, it has all three.... small, large, and "extra coarse". But the description for both Large and Extra Coarse states 2-3mm.
So I guess my question is... if large is 2-3mm, what is the coarse/extra coarse?

