FB2 Purple Lemonade Auto

Out of the three strains these two have stayed pretty much uniform but on the smaller side of what I like to see 3 weeks in. I know there isn't a problem with nutrients so I'm thinking I gotta do better about checking my water pH when it takes more than one watering session to use up that batch of water. I check it when I make the batch but not everytime I pick up the sprayer to use that same water. Thinking carbonates are raising my pH. Gonna find out next week which will also be time to reamend the medium with some fresh food for the microbes to feed the roots. We're gonna get these babies big. Granted this is about the time that my last PL showed pistils so let's hope for a longer veg. Anyhow we'll have to see how they react to the topdress and their new strictly 6.5 pH next week. At least neither of these looks super sad. The same can't be said for one of each of the other two strains in this grow...