Hulkberry auto

This week I ended up getting myself a TDS meter for measuring the ppm. This is all new to me so it’s been trial and error with tap water and rain water. Simply because my tap range is like 390/420 and the water butt water is only around 0.15 or less. I think I’m smoking way too much whilst I’m researching and I’m getting information overload hahah. This week she formed nicely with lots of new leaf growth but no stretch so I’m pleased about that. On day 13 I noticed slight curling of the leaf so again I had to bring her down a few more inches. The very next day on day 14 I had to take action she looked a little exhausted. Could of it been the rain water that done this? Again I haven’t a clue but I’m sure someone on here will advise me regarding this. Your advice would be appreciated. After all thats what this is all about right? So we can learn off each other. I have grown a fair few strains in my garden and green house in the summer months and have produced some beautiful plants. I hope to get some of my written diaries up here in future but for now I need to concentrate on my beautiful girl I have now. Back to the hulkberry grow... I’ve been giving her fresh foliage spray every morning ratio of bio bizz : 0.5ml alg-a-mic + 0.5ml fish mix. I will be switching from grow to fish mix next week, I hear this helps promote bigger yields. What do you lot think about this.? I done some l.s.t on her too on day 14. She was already stressed so I thought a little more shouldn’t hurt too much.