Natural Foods

You can feed various fruits & veg to fish. The most commonly used as cucumber, courgette and peas.

Courgette is more nutritious than cucumber. With both of these microwave a slice in a bit of water for 20 to 30 secs then skewer the slice onto something like an old stainless steel teaspoon. You can buy clips that attach to the tank wall with a sucker, or a device called a screwcumber though be careful with those if you have a fish just the right size to get stuck in one. If you have wood with spikey branches in the tank you can skewer a slice on those too.
We don't eat courgette very often so when I fed that I just sliced a whole one and froze all but the slice I was about to feed on a tray then packed the frozen slices in a bag. If they've been frozen they don't need microwaving as freezing softens them
Remove any left overs after 24 hours as decomposing courgette/cucumber makes a mess in the water.

Peas should be cooked first. Either cook some specially or save some from your meal. Pop the insides out of the skin and chop till the pieces are small enough to fit in the mouths of the smallest fish. Don't use many peas till you find out how fast they go as uneaten chopped peas are not as easy to remove as a slice of courgette.


I have read of sliced banana being used - skewer that as for courgette, but it doesn't need softeneng

I wouldn't use any veg more than once a week except for strictly vegetarian fish which can be fed veggies more often.
And rotate the veg so that any one type is fed no more frequently that once every 2 weeks.

These veg are not part of the natural diet of fish - they don't grow in rivers and lakes - which is why I wouldn't feed them too often. Peas can be used for constipated fish, but daphnia is as good and a food that fish do come across in the wild.

I mean just plain peas, like the ones in bags of frozen peas. Each little pea has a skin round it and when you cook them you can squeeze the pea and the inside pops out of this skin. Fish won't eat the skin, just the inside. If you put the skin in the tank it just sits there and rots so it is easier to use just the inside of the pea.

I've seen green tinned beans used straight out of the can but haven't tried it myself.  Blanched sweet potatoes are also good for vegetarian fish.