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Python Reverse Angle, and Lapis Lustre

Another angle on the whole python thing: My wife and I are probably
the only ones we know who still use buckets to drain our 24 tanks.
The main reason is that she likes to look in the bucket for any fry
that may have been accidentally siphoned out.  I also like to use the
old tank water for rinsing out the sponge filters, which is difficult
with no old tank water.  For refill, we have a food-safe garden hose
running from the sink to a resevoir (10-15 gallons), and a sump pump
with 10 feet of vinyl tube and a ball valve to get it into the tank.
This way, we can treat the water before it goes into the tank, but we
don't have to carry buckets with the new water.  It's sort of a

> From: krum at wco_com
> Subject: Re: shells in gravel in the West
> I'd just like to add that I use this same material, RMC Lonestar "Lapis Lustre",
> with no problems at all. I use a mix of R.O. and well water and add CO2 and have
> a KH of 5 and pH 6.7-7.0. I just went out and took an unused sample of this
> gravel, dumped some muriatic acid on top and saw no fizzing whatsoever. Neither
> could I discern any broken shell like material. I can't dispute what others have
> found so maybe it comes from different areas.

Sounds like you have the "old" kind, or it must vary from match to
batch, because there is definitely fizzing and visible shell material
on the stuff we get (the salesperson even said it has shells in the
same breath as calling it aquarium gravel).  Ironically, one person in
our club thinks this is a good thing for growing a bed of nitrifying
bacteria!  (See the last paragraph of
for his claim.  You can also find my original warning as pres9702.html
in the same area.)  I have two buckets of Lapis Lustre sitting on our
porch, which I'd gladly like to unlo---err, donate, to any interest

  - Erik

Erik Olson				
eriko at wrq.com