Higher alk waterchange?

[ScottB]

You can perpetuate that if you want but it's beyond easy to find a 200g box of IO for less than $40 (dont think I've ever paid more than $37). BRS' comparison was convient with their own pricing, not so much for real world pricing. This stuff is always on sale somewhere.

Reef Crystals for $.28/gallon for instance.
Instant Ocean on auto-ship for $.28/g but this isnt even a great price for it.

Thanks for that link. dang! I am on monthly auto purchase for IORC 200 gallon. But the 160G bucket is CHEAPER (per gallon). Not that I need more buckets in my basement.