New Pool 1st test results

We just had a pool installed today and filled. It is an above ground 24' round and 4.5' deep(13,500 gallons) I have been reading the site for a while and decided to try the BBB method. I brought the pool up to shock level tonight to see if it holds overnight.

Any suggestions or comments are welcomed.

Test results

FC 12 ppm
TC 12 ppm
TA 200 ppm
ph 7.8
Hardness not present
CYA 0 ppm. I will start adding tommorow to get up around 30-40 ppm

If I lower my PH will The TA come down also and if so how much? I plan on lowering my ph down to 7.2 -7.4. Will I need to use the aeration method to get my TA down to an acceptable level?

Thank you
Matthew