Hi! I have just started up with my first and new fish tank. After years of wanting a fishtank, I treated myself with a 20 gal. Marineland Aquraium. I set it up with (i think) proper decorations, I installed a water heather, air pump and led lighting. I applied Marineland aquaraium bacteria and conditioner in proper doses and left it cycling a weekend. Then I bought a Pleco, 5 neon tetras. A couple of days after, I bought 5 neon tetras. All of them died within a week. I performed a partial water change (about 30%), added Marineland EasyCare in proper dose and bought a couple of silver mollies. One of them was pregnant!!! and give birth to 5 fry (that I could find). I ran over the petsmart I bought a breeding box so the fry would be safe. 2 next day, first Molly died, next day the other. I'd only got the fry. After a couple days more, they started to die, now I have only one left (a fighter) that seems to be struggling deeply to keep alive. I don't know what to do, I've never expected to take care of fry before since I hoped to gain lot of experience before even trying to breed fishes. Since yesterday it seems to be getting worse. I can even see its tiny fins a little broken, I don't know. I'll post a picture I took for you to take a look. You can even watch a short video I took form it at: Any help will be really appreciated!