Can confirm if you don't have mature filter media - as I didn't - it puts out enough ammonia to go through a fish less cycle. I did not use the powder but it is probably better to get it for a nano, especially if you do a carpet.Tropica Aquarium Soil - I use Powder only
The only times I monitored, ammonia etc was negligible (more recently used Seachem Ammonia Alert) but this is in soft, acidic water and almost always include some established media (or previously used soil), wood, plants etc
Can confirm if you don't have mature filter media - as I didn't - it puts out enough ammonia to go through a fish less cycle. I did not use the powder but it is probably better to get it for a nano, especially if you do a carpet.
I suspect that ammonia release is variable (re Production runs) - lfs set up new test tanks with various substrates and tracked ammonia, nitrites, nitrates, pH for several weeks
The Tropica Aquarium Soil tank showed negligible ammonia etc (other substrates included ADA Amazonia, Tropica GS and maybe Eco Complete ... unfortunately I didn’t do much more than glance at the project data)
Would be fun to see that data. I’m particularly curious how long any Gh/Kh/Ph changes persist for....