Re: [APD] Substrates and mulm in non-CO2 tanks

["S. Hieber" <shieber at yahoo_com>]

Depending on the fishload, amount of driftwood and
driftwood gnawing fish, and your vacuuming regimen, mulm
can build up with almost any substrate, except perhaps
rocks, which I've never tried. I've used Fluorite,
Eco-complete, and Onyx sand in non-CO2 tanks (from 12-30
gal) and if I was setting up another, I would choose
between the three based solely on the appearance of the
substrate itself. The Eco is blacker, the Onyx greyer, and
the Flourite comes in two choices of redness.

Just a personal view,
Scott H.
--- Jim Seidman <js5 at seidman_net> wrote:
> My current two tanks (35 and 125 gallons) are both set up
> as non-CO2 tanks,
> with silica play sand over topsoil. I'm doing infrequent
> (every few months)
> water changes.
> 
> My big complaint about this setup is that the play sand
> is fine enough that
> the mulm sits on top of it. It accumulates around the
> plants, forms drifts,
> and rises in clouds when bottom feeders swim though it.
> Plus, it looks
> really ugly against the light-colored sand.
> 
> It's all annoying enough that I'm going to tear down and
> redo the tanks.
> I'm trying to decide between Flourite and Onyx Sand. I
> like the look on
> Onyx Sand better, but I'm concerned that I'll have the
> same problem with
> mulm accumulations on top. At least with Flourite it
> should be coarse
> enough for the mulm to settle between the grains.
> 
> Can anyone who has run non-CO2 tanks with the substrates
> comment on their
> mulm experiences?
> 
> Thanks,
> Jim Seidman
> 
> 
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