I am getting a pea puffer tank for my birthday, it will be a 5 gallon. And I want to have a heavily planted. I want to use a planted substrate, but I don’t know what one. In my 29 gallon I have sand and I use root tabs. The problem is, my Amazon swords and valisneria are surviving, but not thriving. I also dose seachem flourish but it really dosent make a difference, even with the anubias and Java fern. I was thinking fluval stratum or eco complete? I know fluval stratum lowers ph and I don’t know if I can buffer that easily and make it fish safe. The eco complete dosent do that, but it dosent have a lot of nutrients. What would you suggest?