Planted Tank Guru
Join Date: Nov 2009
Location: Missouri united states
Not many can leave plant's alone in dirted tank's, and soil is unforgiving when uprooting moving plant's ,and filter material can get a little dirtier ,quicker, in soil based tank's.
Fishes that root around in the cap material can also uncover soil, so consideration's with stock must be thought out.
With that said,,I have three soil based tank's, and it seem's to me that plant's get better start with soil for root's to search out than inert substrates at least early on, but that is only my opinion.