cheese auto

gave a good feeding this week and started to add tiger bloom. almost in bloom phase. tested pH of water, not good, in the 5s. ordered some pH up and will use tomorrow. all the nutes I use bring my tap water (ph7.2), down to 4-5ph. so that is BIG issue, plant looks to have nitrogen deficiency (yellow bottom leaves, red stems). hoping the pH up will turn it around. but not to bad for first grow. nuwbies.... def buy a pH meter asap, even cheap ones can be good!