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Re: NFC: Another Filter/Aquarium Question
Hey Jake,
I had this 29 gallon tank that was a marine tank with nothing but different
species of puffer fish. The stocking density was through the roof, but the
fish did well. 20% water change per week, and roughly 1,000GPH filtration
running through that tank. When I'd first put a new fish in there it would
get knocked around a bit but after a very short period of adjustment the
fishes would all swim around normally, hover, etc. as if the water were
perfectly still. To the casual observer there would be no evidence that the
water was so highly agitated until I dropped some food in there. Most foods
were useless in such a tank because it would blast apart into a cloud and
disappear. So I would feed them large food items like whole mussels, in the
shell. Or shrimp. Or big chunks of whitefish. That tank did great for
about a year and then an ice storm took the power down. With about a dozen
pufferfish in a 29 gallon tank it didn't take long for the worst to happen.
But the water was always crystal clear. Not an easy task when you've got a
tank full of messy puffers.
Chris Hedemark - Hillsborough, NC
http://yonderway.com
----- Original Message -----
From: "jake levi" <jlevi_us at yahoo_com>
To: <nfc at actwin_com>
Sent: Saturday, January 13, 2001 8:52 AM
Subject: Re: NFC: Another Filter/Aquarium Question
> No, at six times per hour your are doing a LOT of
> oxygenation but not helping the biological processes
> appreciably more. As I stated, a complete change six
> times a day gets the water through enough times to
> maintain a healthy biological population. Oxygenation
> becomes a factor if, you have a high density of
> biolife, and/or fish with a very high oxygenation
> requirement.
>
> We are now into my masters thesis/project, and I can
> bore everyone with pages of data, but for home
> aquariums, unless you have a highly stocked tank, or
> are keeping a pound of fish to a gallon then the very
> high water turnovers are on the 'wrong' side of the
> cost curve. If, we are talking about marine tanks and
> you are trying to come up to the minimal reef
> conditions then yes, blast it and let the good times
> roll. My friend Tom Miller told me of a fellow who had
> 275 Xs per hour turnover! More like a whirlpool then a
> reef change! Dont try it at home without adult
> supervision! I have no idea how he could even see into
> the tank at the turbulence.
>
> If cost isnot a factor then go for it, but, for an
> example, to achieve a stream effect you can do it well
> with a couple powerheads with the sponge
> filters.Myself I like them on ugf, and maybe a HOB or
> two on a 75.Canisters add another safety factor. Hard
> to overfiltrate. Thats the good thing.
>
> There is no one right way, its all variations per the
> individual, and 99.999% of them work within simple
> parameters. For average tanks that arenot heavily
> stocked 6 times a day turnover works. For heavier
> stocked tanks 1-2 times an hour is quite sufficient
> but if you want more go for it. This is all about
> enjoying what we do.
>
> I use Aquarium Systems powerheads, with or without the
>
> ugf's, and generally go with the larger capacity ones
> so actually my water turnover is on the high side but,
> mainly because I have had marine systems with corals.
> jake
>
> --- Chris Hedemark <chris at yonderway_com> wrote:
> > Jake,
> >
> > I think more accurate would be moving the water
> > through six times per HOUR.
> > :-) Big filters are your friend.
> >
> > Chris Hedemark - Hillsborough, NC
> > http://yonderway.com
> > ----- Original Message -----
> > From: "jake levi" <jlevi_us at yahoo_com>
> > To: <nfc at actwin_com>
> > Sent: Friday, January 12, 2001 10:45 AM
> > Subject: Re: NFC: Another Filter/Aquarium Question
> >
> >
> > > That depends on what size pump that you want to
> > use,
> > > and how much water that you want to move. You
> > usually
> > > want to move at least six times the volume of your
> > > tank per day. As a minimum. Most try for 1-2
> > changes
> > > per hour and use a corresponding size pump. If,
> > the
> > > tubing is too small dia for the pump you will get
> > > backpressure
> > > which will wear the pump out much quicker then it
> > > should.
> > >
> > > If you look at the outlets of the pump you are
> > > considering you will readily tell what size tubing
> > > that you should use for that pump. So, look at how
> > > much water you want to turn over, find a pump that
> > > will do it that you are happy with and see what
> > its
> > > inlet and outlet measurements are. Most pumps
> > listed
> > > in catalogs
> > > have the measurements listed.
> > > jake
> > > --- Larry Needham <LBN at satx_rr.com> wrote:
> > > > What size tubing to most of you with bigger
> > tanks
> > > > have going from the tank
> > > > to the Wet / Dry filter? How big is the opening
> > for
> > > > where the water
> > > > escapes?
> > > >
> > > > Is an inch too small for 170 Gallon tank?
> > > >
> > > > Larry
> > > >
> > >
> > >
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