Seeding from a display is for people with existing systems, not for those starting completely from scratch.
This is what I used to start my display and Frag system.
Professional 15x strength live tank starter nitrifying bioculture for rapidly cycling new marine fish and reef aquaria and brackish aquariums, and for recovering from overcrowding or disasters where the bacteria bed has been damaged or when adding new fish. Useful for rapidly re-establishing...
www.marinedepot.com
But most all the QT's I used Biospira or this.
Buy API® Quick Start Aquarium Cycling Water Conditioner at Petsmart
www.petsmart.com
There are many product out there to jump start a system. The days of 4-8 week cycling are pretty much over. Fritz has a good one too.
Amazon.com : Fritz Aquatics 80205 FritzZyme 9 Nitrifying Bacteria for Salt Water Aquariums, 32-Ounce : Aquarium Treatments : Pet Supplies
www.amazon.com