Me and a couple of friends were bored at the store when we decided we should try setting up a fish tank. My dad had a successful chiclid tank for awhile so I knew we had all the supplies we needed. Once we got home we cleaned out the tank (no soap, don't worry) and bought some new ornaments, plants and gravel. We filled it up with water and then dechlorinated the water, put all our stuff in, and set up our under gravel filter, our filter, our bubble wand and let it sit over night. Here's our first mistake: we went to petco and the "fish expert" gave us the okay to put fish in. We sadly listened to him and bought 10 guppies and put them in our tank. They lasted awhile, I think our first death was after 5 days or so. But fast forwarding a little we're now on day 13. All of our guppies died, but while they were alive one of our females gave birth to 6 babies. 5 of the babies survived. So we have 5 guppy fry and 1 oto. I now know we didn't cycle our tank and I feel horrible that we put these fish through this. I got my water tested and the lady told me my ammonia levels were high (She said likely due to the dead fish) but I figured it was because my tank wasn't cycled and it was all out of wack. She told me to get some ammonia detoxifier and use it and then come back and see if I could save the rest of my fish. I used it as directed, although I think I over used a little and used it 2 days in a row as I was a little ancy to try and fix the problem. I went and got the water tested today and here's the results PH: 6.0 Ammonia: 0.5 Nitrite .25 Nitrate 10. Here are our major questions: Are we screwed? Should we just start over and humanely kill the remaining babies and oto we have and do a complete water change? Or is it possible our water is save-able? should we try something/wait it out? I really hope its save-able but we can restart if need be. I hope you don't think were some mindless fish hating teenagers we just didn't know what to do and we wanted to see the results as fast as we could. Thanks for you time.