If they don't fall off like air bubbles would than yes there probable eggs. I'd put them in another tank asap as the other fish might eat them. As far as I am understanding if the eggs are white they have a fungus & are no good, eggs should be clear. That is if eggs are eggs. I just learned that is what it is with rainbow eggs. You can pick them off if there white or leave them. I don't think it will hurt anything thing if you leave them. I right now am trying to spawn 2 of my rainbows , because I'm not too sure how to tell the good eggs from the bad. I will leave any eggs that collect on the mop & let the person thats getting it take care of that. Good luck & i hope that they are eggs. Please be sure & let us know if there are & you get fry.
1-120 Gal tank 1-14 Gal Tank 1-2 Gal Q Tank 1-16 gal bow front
4-P ivantsoffi-blue eye
2-Diamond 2-Sepae Tetra
1-Buenos Aires Tetra
1-Blue Tetra 3-Brissel Nose Pleco 2-Kamaka 2-Duboulayi 1-Chilatherian sentaniensis 2-Glossolepis 1-ramuensis 1-marci 4-Celebes 2-Parva 2-Dorityi 2-Bleheri 30-cherry shrimp & some snails