Found the reason not to cycle coco nutes. pH was expected to rise, it's 6.3 which isn't concerning but PPM is 731.
And what's worse I'm seeing a few weird leaf veins developing.
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Only a couple plants and a few leaves but need to fix it before any real damage is done.
So that experiment has ended. I'll leave the supply tank and use it but change the drain line to a 17 gal tank. I can program it for a couple fertigations during the day and I'll take care of the early morning am's and after work. It helps but cycling would have been easier. Time to switch to DWC and be done with it!