Alex,

Have you read the stickies at the top of each forum? They will give you guideline numbers for "normal" ranges.

Try 2 lbs of Borax if you wish to raise your pH. Judge subsequent dosage from the amount your pH moves up.

The majority (probably) of folks on the forum don't use any algaecide. That's an individual choice.

Final thought....without sanitizer in your pool, algae and bacteria formation may become a real issue. Stabilizer and maintaining a higher chlorine residual will almost surely prevent that.