First Aquaponics Grow

All of the fish have died. I'm not sure why but I found them all dead inside my small solids filter around the pump. I made a new one with no possible entrances so none should get trapped. I think I unintentionally made a fish trap. I am keeping to the same compost tea and might get some goldfish but it seems as though the buds will fatten up in the next couple weeks and I don't plan on using this system in the fall as the temperatures will be too low. I have also defoliated leaving only the leaves around the bud sites. I can't wait for the chop :)