The fish waste alone is not a balanced source of plant nutrients.
Some plants will grow, but many will not.
The question I asked some years ago was why.

The plants will do better if you add just a small amount once a week(this is not outting you or anyone out too much?) of SeaChem Eq and KNO3/KH2PO4.

Nothing complex, nothing high tech, add 3 things once a week.
This allows you to grow most any plant.

It also removes the need and mess for soil should you go that route.

Regards,
Tom Barr