They should choose the best one or two specimens and put the rest in the compost bin.
At the worst it can be used for making a cold frame or compost bin.
The smaller the pieces in your compost bin, the faster they will break down.
When preparing a meal, why not ask your children to help you sort out which pieces they can put in their compost bin?
How about we cut off the fins and throw everything else into the compost bin?
You can toss the other ideas in the compost bin.
I once found an egg at the bottom of the compost bin which had been taken there by a rat.
Also could I pour this water into my compost bin to enrich the end product?
Adding fish water to your compost bin will certainly improve the result.
You'll need a compost bin, which can be purchased from most home improvement stores.