I too like to have a chance of my fish breeding even in a long shot way...without too much effort on my part or even a small chance of fry, lol. Yeah, I think several species of gobies do the pelagic thing. Odyssey has or had many gobies & has visited many of their natural habitats.
Still, I'm happy I tried stiphodons, not something I would have done without a coast to coast move & a chance to start all over with very different fish...just 1 more interesting thing about relocating

We've done it a few times over the years, new water, new lfs, new opportunities...it keep life & fish keeping interesting!