Your loach looks pretty small for it to be eggs to me & the bulge too localized. Could be overeating. Do they eat veggies for you? You might try peas, squish out the "guts" of cooked frozen peas & cut back on feeding for a bit.
My zeebs are slow growers & are only ~2.5 inches at most after 3 years but none looks to fill with eggs like the sids do. The female sids looked like stuffed sausages with dark bellies. AFAIK striatas haven't bred in tanks, & I've only read of sids breeding once.