Copper, Otos, SAE's and CO2 systems
Subject: Copper in acidic Vancouver water?
> If there
> is Copper in the water, how could I safely remove it (ie. pretre
> the water) without leaving compounds that might also precipitat
> my Fe(EDTA)? From Karen's comments, it doesn't sound as if she h
> found a highly successful method.
Actually, I got pretty good at removing it. The biggest problem
in my case is that like George, my primary interest is in display
tanks, they are spread throughout the living areas of my home and
their combined volume is quite large. Pretreating water in _any_
way is cumbersome at best. Now, I watch that tap water closely.
I know what times of year the water is likely to have the highest
copper levels. At these times, I _do_ pre-treat water, but I do
less water changing to.<g>
I am sure that either R.O. and/or D.I. would solve the problem
completely. I am able to reduce the levels to below .25 ppm (from
3+ ppm) by running the water in a storage tank through GAC for 24
hours, followed by running cuprisorb (or other copper specific
resin) in the filter for a second 24 hours. I do this rather than
just running the copper resin from the beginning because carbon is
so much less expensive, and I need to treat a lot of water.
It has been my conscious descision to live with the conditions I
have, and just not use species of fish or plants that cannot
tolerate my water conditions. (there are more species that do fine
than I can use anyway!) Besides, there are some advantages...
I've never had a case of Ich since we moved to this house, snails
die on contact with my water, as does red algae ;-)
Subject: Brown Otocinclus
> What have been people's experience with "brown otocinclus"? Any
> comments or concerns?
You'll have to be a little more specific than that, there are at
least several species of Otocinclus. One type that has been
coming in under the name "O. flexis" (but probably isn't) has
turned out to be a plant eater and fin nipper. Is that what
you're hinting at?
Subject: Boston Area Store with SAEs?
> Which store is this?
Uncle Ned's Fish Factory.
Subject: Tetra CO2 System...?
> I'm wondering if anyone can give me some sound advice from hands
> experience with Tetra's complete CO2 system to help me decide wh
> buy or not...
> Including how long their CO2 canister (6oz.?) lasts in the real
> my heavily planted 29g they say 6-9 months)...
My 5 _pound_ tanks last me 1 year on my 55G tank, and 9 months on
my 70G... You won't get much CO2 into the water if you make 6
_onces_ last 6 months.
> And how well the
> injector works and how long the system actually lasts between
> injections--from what I could read in the kit, I will need to ma
> inject the CO2 twice daily...?
Yup. Royal pain in the neck. That's probably why the CO2 lasts
so long... people forget to do it regularly. IMO, intermittent
use of CO2 is probably worse than none, at least where Crypts are
> Yes, I'm aware that I could go out and get everything for a mor
> professional setup (canister, regulator, valves) for about the s
> money--providing I rustle through the phone book and then run al
> finding things from home-brewing dealers and valve dealers ("Y'a
> WHAT, mister?!"), and I'm not real thrilled about this mixing of
> yeast every two weeks ("How much will it bubble this time?!?") t
> currenly doing...
> The thought of buying one box from my dealer and BINGO I'm in bu
> very appealing for my current hectic schedule!
If you think that's a chore, try remembering to fill those silly
little cups at least twice a day. (passive diffusion will also
not add a lot of CO2 to the water)
You'll be much happier with a properly set up and adjusted DIY
system. If you have the $$, and want to do it the easy way, buy a
serious CO2 system with a pH controller.
Aquatic Gardeners Assoc.