I've always used Brightwell.
I'm sure @WWC will comment, but I do know they have recommended not dipping right after receiving your shipment due to stress. Best to quarantine, or if you can't quarantine, put your frags on a rack or in the sand for a few days, then dip after acclimated.
I have killed a few perfectly fine Acros in the past by dipping right after shipment. So lesson learned.
I'm sure @WWC will comment, but I do know they have recommended not dipping right after receiving your shipment due to stress. Best to quarantine, or if you can't quarantine, put your frags on a rack or in the sand for a few days, then dip after acclimated.
I have killed a few perfectly fine Acros in the past by dipping right after shipment. So lesson learned.