I do feed my fish zucchini and peas frequently. While I remove the skin I don't remove the seeds from the zucchini, but I blanch them though.
Yeah.... peas have double skin. One which is the pod, and one to the individual pea. If you use frozen peas, the skin will come off very easily after you blanch them. (Blanching is usually done by keeping the veggies in boiling water for a couple of minutes and then suddenly dumped in cold water)
I won't recommend not removing the skin off the peas especially if you are feeding them to small fish. Zucchini seeds seem to be ok though.
And do remember to remove whatever is left uneaten in a few hours. I usually feed in the morning and take it out in the evening.
Hope this helps.