Strange, your numbers look fine. 1400 ppm run off is a tad high, but shouldn't cause burning... however burnt tips + dark green leaves almost always means you need to back off on the food. EC meters are cheap. I'd order another in case yours is reading low. I've been happy with this one.
Durham Region, Ontario
Selling a used Vortex VTX400 in-line fan - https://www.amazon.ca/Vortex-Powerfans-VTX400-Powerfan-4-Inch/dp/B0055F6Z7C/ref=sr_1_1?dchild=1&keywords=vortex+vtx400&qid=1605803043&sr=8-1
Very solid fan, only selling because I upgraded to a 6" when I added another tent to the mix. Asking $80. Also have a 4" carbon filter with some life left in it as well I'd toss in plus some insulated 4" ducting.
https://indoorgrowingcanada.com/products/vortex-profilters-pro45s-4-by-atmosphere-carbon-filter
Shelled / unhulled, unprocessed, raw hemp seed specifically.
Example $20 for 250g: https://www.amazon.ca/Biona-Organic-Hemp-Seeds-250g/dp/B003VJSLBW/
Note the 'not to be used for growing' and that you can ignore this, especially if you are just looking to make textiles.
Hollandstar Grow light - COB LED Full Spectrum - TRUE 230W.
$70
https://www.amazon.ca/Spectrum-Sunshine-Vegetables-HollandStar-X5-1500W-White/dp/B07TH7D3YH
Located in Toronto. I used it in a 2x3 tent and it was enough for both veg and flowering. Used for 2 grow cycles (+-8 months total).
Compost Tea Bubbler/Aerator - For 5 Gal bucket
Made my own bubbler when I was brewing compost teas. Stopped doing organic soil so I have no need for it.
If you are growing in super soil, this is a must have.
Even comes with a bag to put your compost in. All you need is an air pump and a 5 gal bucket!
Similar to this: https://www.amazon.ca/Compost-Tea-Aerator-BubbleSnake-Gallon/dp/1450740359
Selling for $40 OBO.
3.6 Gal Air Pot. Self pruning pot. Very nice if you will be transplanting to a bigger outdoor pot.
https://www.amazon.ca/Superoots-Air-Pot-Equivalent-Propagation-Containers/dp/B017DM99EU
Make me an offer. Clearing out things I don't need.