My daughter designed her own aquaponics sytems with a 100 gallon 'fish tank' barrel and a lot of 10 gallon tubs, rain gutter, tubing and an aquarium pump hooked to a timer. Each bin has its own 'crop' where she can plant like vegetables, grow to harvest and start again.
She doesn't grow tomatoes (says they taste bitter) but peppers and herbs and greens of all sorts. Her whole setup is in a temperate greenhouse (the temperature stays above freezing). Her 'fertilizer' part are koi although most people grow tilapia.
I would send a photo but I can't get far enough back to tell what it is.