So I have a 46 gallon bowfront tank thats been running for about two to three weeks without fish and two weeks with 6 little tetras in there to try and get the cycle complete. Yesterday I tested the water and saw that my pH was very high (7.8) and my ammonia was at 0.25 ppm but there was no nitrite or nitrate. Is my cycle complete? If so what do I need to do to lower the pH and ammonia levels? I'm new to doing fish tanks and am unsure. Thanks :)