Reef Crystals vs Regular I/O

[ReeferBob]

I do not keep any corals (gave up long ago) and am FOWLR. Are there any advantages at all to using Reef Crystals? They are about the same price and I am due for a box of salt.

 

[Reef Jeff]

For a FOWLR system there really is no advantage. IO is cheaper where I buy so if it were me, I would just use that and save money.

 

[ReeferBob]

It's $5 cheaper so I just got the I/O.

 

[Waters]

There are no advantages to using Reef Crystals with a fish only tank. You are paying extra for the higher levels of Mg, ALK, Ca, etc. I would just buy the regular IO, like you did.

 

[Randy Holmes-Farley Verified Community Expert]

Aside from higher calcium in Reef Crystals, I don’t see a clear advantage to it compared to normal IO in any tank. I preferred normal IO for my reef since I did not want added organics.