Stacking Rock

[India]

I have a 20tall...is it OK to stack the rock right against the back wall?
How about putting the heater at the bottom, with a small powerhead, screen sticking out for cleaning, and stacking rock over that, knowing it may be moved now and then??
Thanks,
India

[BristolWorm]

I've sometimes stacked rock against the back but I try to avoid it for water flow.

on the heater. I would be careful with a heater in that setup for the following: it could break, it could get stuck on, it could leak voltage

all of which would require a teardown to get it out.

I strongly recommend a titanium heater in a location where you can easily remove it if necessary.

my $0.02

[Lunchbucket]

i personally don't like stacking against the wall...i have done it before in my old 55gal. i would try to not do it as much as possible so you can get water flow back there.

as for the heater i would not burry it where you can't get to it easily

Lunchbucket