Hi all, I just wanted to help anybody who was having problems reducing their pH. I am doing a test with Aqua Design Amano Amzonia substrate which reduces the pH to see if it is a reliable and safe way to lower the pH. After the first five minutes my pH has dropped from 7.6 to 6.8. To be clear I am puttung it in a filter which is sitting on a 5 gallon bucket. About two cups of ADA went.
Side note: ADA leaches ammonia for the first month or so, which means if you are putting it in a already established aquarium with fish but no plants, stay on top of the water parameters/ water changes. With plants you should be fine but always regularly check. If your tank is not a established tank and you need to cycle it, then it is pretty straight forward. Put the ADA in the filter of choice and just keep up with the water changes and it will be fine.
If you have any questions about anything go ahead and post here.