I have a planted aquarium. Its been with real plants for a few years now and I have never removed or changed the substrate. Alls I have is sand and medium gravel. I have added fert pelets into the soile about once a year.
Anyway, I want to remove all of my soil and put in a good substrate. I bought enough profile(aquatic) to cover the bottom in about 3/4 inch. What should I put on top of that? I want to have sand but should I put a layer between the sand and profile?
Here is something else I had in mind. Put a layer of peat, profile (with fert), very small gravel and then sand.
My question. What works and what does not work. Its a broad question, just looking to what people have for experience.