nutrients Changing nute type in hydro - bad idea?

[Siv]

The first nutes I bought was a bottle of Dynagro 7-9-5 and I've used it for pretty much all my plants so far. It's pretty expensive though so I bought some masterblend, cal-nitrate and epsom salts and have them ready for the future. My problem is that I'm almost out of Dynagrow - I probably have enough for another 10-5 5-gallon kratky buckets but that's about it. I'm going to have about 15-20 5-gallon buckets and the plan is to use a large 32 gallon (or larger) trash can as a master reservoir controlled with a float valve to maintain 2-3 gallons of nutes in each bucket.
 
So my question are:
- If the buckets are all currently filled with Dynagrow but they're manifolded to a reservoir with masterblend, the nutes will mix slowly over time until there's probably only masterblend left. Is this the best plan?
- Should I ditch the dynagrown and re-fill everything with masterblend?
- Will changing the nutes shock the plant? Is this bad and should I just buy more Dynagrow?

 

[Capsicum Connoisseurs]

Hello, I know its a very late reply but draining the dynagro and filling the reservoir with water just for a couple days to flush the old nutrients out of the system and kind of resetting the plants back to neutral will help.Then after a couple days or so adding the master blend will help the change over. I've done this with different nutrient brands and has worked well for me.

 

[Siv]

Nice to hear your experience. It's been a while since I posted that but in the intervening years, I have also started my seedlings with dynagrow or CNS and transitioned to masterblend once they're established. It seems to work OK, even when mixing the nutes.