We had our water tested recently and our ammonia was at 1.0ppm.

We did a 75% water change and added water conditioner and Nite-Out, a liquid that contains beneficial bacteria, to the water. We've been adding this and doing 25% water changes for the last two days, but the ammonia levels aren't dropping in the slightest. Worse, one of them is getting red streaks on his fins. We are only feeding them about half of what we normally give them (and they eat it all). The filter is working fine. The only problem I can see is that we have the three goldfish in a 38 gallon tank, but this is the first time we've had ammonia problems. Is there any way to drop the ammonia level faster before something awful happens?