I have been cycling a new 5G freshwater aquarium for 9 days using Dr Tim’s One and Only along with Dr Tim’s Ammonia Chloride. I have been trying to get this tank up and running for about 6 Months now. I have switched substrates 3 times and the fish always die. I used Seachem Flourite the last time and it killed my plants along with the fish. This time I am using Fluval Stratum and Carib Sea Eco Complete. I am trying to start a Shrimp tank. My problem is my PH is low 6.4 ppm and my Ammonia is high 4.0 ppm. I have added Lava Rocks and still the PH stays low. Here are my parameters. Ph- 6.4 PH- H- 7.4 Ammonia- 4.0 Nitrite- 0 Nitrate- 10/20 colors are too close. I am using a sponge filter and a heater. Assorted plants- Java Ferm, Java Moss, Anubias Nana, Rosette Sword, Moss Balls, etc. Can someone tell me what to do with this tank. It has become very annoying. I have 2 other tanks and never had this much trouble starting them.