method not spawning sprite properly - ios

Question

Right now I have five bricks at the top of the screen all on the same y position and equally spaced apart. I would like to have five more breaks spawn outside of the top of the scene and slide down every 5 seconds. While the new bricks are sliding down I want the previous bricks to slide down to make room for the new. I want this sequence to continue on forever. I would like the new bricks to pick up the same properties of the old ones , such as when a ball hits them the react.
With the code I put in to accomplish this, I get a single brick spawning and then sliding down. Also the new brick does not act the same way as the old, it does not act like its a part of the physics world. How do I get 5 bricks spawning then sliding down and applying the same properties as the other bricks.
This code is the code I added to spawn more bricks:
-(void) spawnMoreBricks:(CGSize)size {
for (int i = 0; i < 5; i++) {
SKSpriteNode *brick = [SKSpriteNode spriteNodeWithImageNamed:#"brick"];
//resize bricks
brick.size = CGSizeMake(60, 30);
//position it
brick.position = CGPointMake(self.size.width/2, self.size.height);
SKAction *wait = [SKAction waitForDuration:5];
SKAction *spawn = [SKAction runBlock:^{[self addChild: brick];
SKAction *move = [SKAction moveByX:0 y:-80 duration:3];
[brick runAction: move];
}];
SKAction *spawnSequence = [SKAction sequence:#[wait, spawn]];
SKAction *repeatSequence = [SKAction repeatActionForever:spawnSequence];
[self runAction:repeatSequence];
}
}
This code adds the bricks into the scene right when it initializes, they react to the ball colliding with them and everything:
- (void) addBricks:(CGSize)size {
for (int i = 0; i < 5; i++) {
//create brick sprite from image
SKSpriteNode *brick = [SKSpriteNode spriteNodeWithImageNamed:#"brick"];
//resize bricks
brick.size = CGSizeMake(60, 30);
//psoition bricks
int xPos = size.width/5 * (i+.5);
int yPos = size.height - 25;
brick.position = CGPointMake(xPos, yPos);
brick.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:brick.frame.size];
brick.physicsBody.dynamic = NO;
brick.physicsBody.categoryBitMask = brickCategory;
//add bricks to scene
[self addChild:brick];
}
}