Brake Bleeding Question

Hi,

I am going to bleed both left and right front brakes.
Since I disconnected the brake calipers on both sides.
And by accident I wasnt thinking and pumped the brakes without the brake calipers connected. So I must of sucked in air into the brake system because the pedal has a spoonge feeling and takes more force to fully stop the car.
anyways I only have to bleed the front 2 correct?
Or DO i have to bleed the back 2 also? I dont have the right size wrench to disconnect bleeder valve on the rear brakes. I think it is a 8mm and all I have is a socket in the that size, not an end wrench.

Also, Do i have to use a bleeder hose? Can I just have somone pump the brakes while I hold a can under the bleeder valve, and when it stops shooting air and just shoots pure brake fluid then I tighten the bleeder valve?
I am going to do this tonight so thanks.

Ok, since you sucked air in, to be safe, you need to do all of the brakes. Yes, I think it is an 8mm for the back bleeder valve. And it is far easier to get one of those suction things that will pull the fluid out for you, but having someone step on the pedal works just as well, it might just take longer.