Over the years I've used cu***ber, lettuce, spinach, peas, tomatoes, melon, pear, apple, potato and carrot, think thats them all, the lettuce and spinach were blanched, peas boiled, everything else peeled and quick wash then dumped in the tank. Ordinary tomatoes went down way better than cherry tomatoes, these didn't get eaten, and melon shouldn't be left in the tank too long if it isn't eaten, seems to cloud the water after a couple of hours. Carrot didn't go down to well either, so never used it since.

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