Ok so I have a densely planted aquarium in my 36g bow front that has been running for about 2 weeks... Co2 running in the tank with a odyysea t5 light fixture. I dirted my tank with miracle gro organic potting mix and capped it with all purpose sand I bought from home Depot. I'm starting to think this wasn't the best way to do this but certainly cheaper. I've been poking a chopstick down in the sand to get oxygen down there and I release bubbles from under the sand. My problem I'm having Is even though I do this it seems like sometimes when I go to plant stuff the substrate underneath in some places feels like it blows out, like collapses. And now I've noticed that the dirt underneath is very high on the one side of my tank.. There is barely any cap covering it... And I made sure I evenly spread out my dirt and cap so it's not because some places have more sand than others... I am definitely getting growth but not as much as I think I should be. What can be the issue and am I in the market for a better substrate for my tank?