I think they're all carrageenan products. Irish Moss is just the raw form. Whirlfloc has baking soda mixed in to help it dissolve faster. Don't know much about Deltaflock...I use whirlflock now i think the two are the same seaweed yep i added at 15 with deltaflock.
I just saw it for sale at local HBS and thought I'd try it out nothing exceptionally amazing about it just a regular finning but it did say add at 15 min .I think they're all carrageenan products. Irish Moss is just the raw form. Whirlfloc has baking soda mixed in to help it dissolve faster. Don't know much about Deltaflock...