Most potent Indica Strain?

Hey guys I'm getting really into cannabis horticulture. My goal is to start a hydroponic grow system with 30-40 plants. I want to try and do all indica but grow 3 different types of the most potent indica strains there is. Any suggestions ? Also any good online seed banks? I've heard G13 labs and sea of seeds are good.

Sea of Seeds is a seed distributor. G13 Labs is a seed manufacturer. Sea of Seeds is a good distributor. G13 is an average seed maker, at best.

Potency really depends on the person. So often weed that blasts me doesnt blast others and stuff that blasts them doesnt me.
But I would suggest checking out some of the pure indica strains by Sweet Seeds and/or Delicious Seeds. They both have very solid strains (not the autos, can't vouch for them).
I also agree with SSHZ, G13 is not a breeder I would spend my money with. I will grow out their freebies but so far everything has been too average or inconsistent to make me want to buy from them.

Blueberry gum was hermie trash for me .sometimes the saying is right get what you pay for.