Ammonia level in Aquarium driving me crazy!!
I have a 55 gal. freshwater tank with about 14 fish. Angels, tetras, a pleco, some danios, and a gourami. They are all small fish. I originally had gold fish in the tank, and slowly added the small tropicals. The goldfish went out into my pond last week during the warm weather. I went to a different store a few weeks ago and bought a snail, another type of pleco, and a pair of guppies. The stores here have a two day return policy. So of course, on
the 3rd day the new fish and snail were all dead in the morning. I thought it was just from that particular store, but the next day another fish died. My husband decided to go buy the water testing kits for ammonia and ph. We never had to use them before, the goldfish were always fine. Anyway the ammonia level was 4.0. We immediately did a 50 percent water change and the level did not change at all. My husband bought Ammo Lock, which made the water smell like urine. It was horrible. Last Friday we did an 80 percent water change, and the ammonia level was 2.0. Now this morning a few of the danios weren't coming to eat, so I did a 95 percent water change. I just checked the ammonia level and it is still at 2.0. I just don't understand where this spike is coming from. Should I remove the fish and scrub the whole tank clean? Is is possible for the ammonia to be on the glass, or somewhere else in the tank besides the water? I am at wits end, and don't want to lose any more if my little cuties. Any info you can give me will be greatly appreciated.