I have babies!!!! Only I screwed up!!!!

All the eggs were getting eaten by the darn snails as soon as I turned out the lights---I busted them doing that too! Anyway,today,I decide to do a water change...it's been a while because I have baby bristlenose's in the tank, and I've been hardly touching the tank for fear that I would kill them( I did a water change in a betta tank ,and two bristles died) So I syphon up about 4 gals. of water into a bucket. Before I did this ,I looked for baby cory's,and didn't see any--as I said,the eggs were getting eaten so I didn't expect much. So ,I'm dumping the water out,and when I get towards the end,for some reason I decided to check again----gosh darn it I saw a squiggle with an eye!!!!! OMG.....I poured most of the water down the drain allready!!!!! So I'm looking and I see a few squiggles---it's really hard because of course all the muck from the tank is on the bottom of this bucket...So,now I'm wondering what the heck I should do????There's not alot of muck,but enough where I don't want to pour it into my tank again----I have an empty 2.5 gal,and a ten gal,but no heater--These are newborns so I know they could die in a blink of an eye!!! oh man,first the bettas now the cory's who's next?????