andy_toms

If you can, see if you can include your growing zone in your personal information so it shows up with your posts.

I see by clicking on your name that you are somewhere in Canada so your warm growing season may be short.

I'm pretty sure daytime breezes will help your blossoms self-pollinate and you can of course brush or jiggle them yourself to help out. IOW, you don't need nighttime breezes. But it does appear that nighttime temps need to be 55 degrees or above for fruit set. If you can add heat to stabilize the temps at about that level, the blossoms and fruit should hang on!

Growing tomatoes in the "far north" sure requires a different set of circumstances, given weather and light conditions! Fingers crossed for a good long harvest!

I think the hydroponic folks hold back nitrogen-- so you could try fertilizing with something high in potassium and phosphorous but low in nitrogen. (I'm honestly not sure it works, but you could try it).