No, yes, Bloodworm. I don't prefer any live foods over any other, but my fish prefer the Bloodworms...so I figured I'd leave it at that. 
As for pH adjusters...I can't comment on the new ones (If there are new ones) because I only used them about 7 years ago. When I was newer to the hobby. Back then, I noticed they did change the pH very suddenly. In a couple of hours it had gone from 6.5 to 6.9. And that can't be good for the fish. It also didn't stabilize it for very long, maybe a week at most.
As for pH adjusters...I can't comment on the new ones (If there are new ones) because I only used them about 7 years ago. When I was newer to the hobby. Back then, I noticed they did change the pH very suddenly. In a couple of hours it had gone from 6.5 to 6.9. And that can't be good for the fish. It also didn't stabilize it for very long, maybe a week at most.