Hi! Thank you for the kind words. It's funny, I was just reading through your journal. You have some amazing looking plants.
Like I said, the pH problem was partly a design limitation where it's a little difficult to get into the reservoir and mix properly and partly just that I'm not used to using pH Up (a little of that stuff goes a LONG way!). Will be fixed for next time and will chalk it up to experience in the meantime.. I was actually a little scared of hydro for exactly this sort of reason but once you get into it the whole concept is a lot easier than it first sounds.
I'm using House and Garden Hydro nutes with seaweed tonic for the first couple weeks and have Canna PK 13/14 for the last few. Will definitely be checking out that link though, thank you. I'm a proper sucker for some DIY. Never could just pay someone for something I could just do a bunch of reading on and give a crack myself. Hence why I'm here growing I guess. Must be the mechanic in me. I'm not personally that handy with the chemistry but my partner is a Chemical Engineer, specifically a process engineer in the water industry, so she's got that bit covered (she had a chuckle about my pH problem).
For my first grow I have gone with the recommendations of the guys down at the local hydro shop as far as nutrients go and once I've got a feel for it I figure I can start playing with nutes/additives etc. They tend to lean towards Coco run to waste over my flood and drain setup but I thought dialing in a feeding schedule without excessive nutrient waste would be easier with the flood and drain for a beginner and it seems to be doing OK so far.
I've seen CalMag mentioned a lot through people's posts but haven't yet looked into what it's for. Will add that to the list
Thanks again for the pointers, I appreciate anything people are willing to provide.
"To know what you know and what you do not know, that is true knowledge." Confucius... Smart guy that one.