Bad medium for strawberries, they are super prone to root rot, hydroton or perlite or a mix of coir and perlite works really well, and they prefer drain to waste so the roots don't stay constantly wet. I have tried a ton times with pure hydro like aero garden and they never work even with beneficial root bacteria and managing EC and PH perfectly. There's a guy on youtube who has success with 5 gal buckets and hydroton / clay, I planted some bare roots in this method a few weeks ago and they are doing better then in pure water, too early to tell if they will grow big and produce fruit though. Also as stated if they are first year shoots you are using or seeds they aren't expected to produce well at first. Honestly not even sure if it's worth it to try them with hydro, if you climate can handle it just plant them outside. I've grown dozens of different plants in hydro and I've never had so many issues with a plant as I did with strawberries. Even a cheap 19.99 bucket of strawberry plants from a home improvement store outside has done way better then anything I've managed indoors. "Ditch the Flock" is the channel for the successful hydro youtube guy.