Some sand before adding base rock?

[cmor1701d]

Hi all,

I'm about to start aquascaping my tank. Should I put a fine layer of sand down first or is it best to put the rock directly on the glass?
I plan on having 3.5"-4" of sand when done but thinking of a 1/4" or less layer of sand before placing the rock.
I plan on having sand sifters in the tank.

TIA

 

[Gtinnel]

The rock should go directly on the bottom glass.

 

[cmor1701d]

Thank you. That's what I did years ago when I set up my 125. So much gas changed in the past10 years I wanted to check before adding the rock in a few hours.

 

[homer1475]

You do realize that a deep sand bed can have issues over time?

1 1/12 to 2" is plenty for wrasses and sand sifters, and thin enough that you don't get those anoxic regions that can nuke your tank.

And yes, rocks directly on the glass, specially with sand sifters in the tank.