Originally Posted by Silverfang
I have to tear down my 33 when I move so I'm gonna redo it with soil capped with sand. Would it be fair to say an inch of soil with a half inch of sand?
In a 33gal-I would go with 2-2.5inch of dirt with 1-1.5inch sand cap-especially if you are going to add sword plants.
In tanks 5-10gal 1in soil to 1/2in sand is correct-maybe a little less in under 5gals-but I have used up to 2in soil and half to 1in sand cap in 2gal without any issue too-depending on the species of plants-
The larger the tank the more dirt you can safely use-but if you are going to use really large rocks or driftwood for decorations in over 2inchs of dirt-its best to place them after the first inch of dirt to help prevent anaerobic spot
Also, its a good idea to place your heater and filter before the hard scape and planting-(if you plan to use a filter
)-This way you can position the overflow so that it hits a hard scape item to prevent it from kicking up the dirt/sand and to know the heater and intake position so nothing is in its way.