I lowered my ph from 7,8 to 7 to also reduce my ta. This was on 5/27. On 5/29 I finally. Got it down to 7.0 when tested at 7 pm. At this. Time my ta was 70. I aerated the water and on 5/31 my ph is 7.3 and ta 80. This tested at 8 am. I turned the return down towards the bottom and want to try ro keep the ph around 7.3 and ta around 70. What do I need to do?