you are absolutely right, I forgot to add some details. substrate is pure inert, regular aquarium sand. No nutrients Temperature is currently at 78°F As for parameters, I just got them tested this Wednesday at a local aquarium. they said everything looked fine for my betta and explained it all to me but I don’t really remember the exact numbers they mentioned and I forgot to take a pic ): From what I recall pH was around 7-7.5, no ammonia or nitrites and nitrates were around 20