I’m currently running ecocomplete in one of my tanks and black diamond in the other two. I’m pilot testing two aqua soils as caps for the black diamond: tropica powder and brightwell.
Plants responded immediately to the additional aqua soil. I did not notice an ammonia spike with either, but I added it gradually rather than all at once. The tropica was a much better shade (more black) vs the brightwell which was more brown.
for eco, you must use plant weights or everything floats back up and you will lose your mind.
will update as we continue!