Backyard Aquaponics
A place to discuss aquaponics

Turning a little bit brown and not looking like becoming a true red strawberry.

Do I need to do anything?

Wait.

Flowers have only recently fallen off and you need to wait for the fruit to grow.

Thin brown edge to the leaves perhaps due to salinity ~1ppt or more.

Also, your media looks wet- you should lower the top drain level so the surface doesn't get wet at high tide.

yeh that looks fine, it will now pump a heap of juices etc into the middle and blow it up like a balloon and each of those little brown things will space out to the little dimple things you associate with strawberries.