[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Index by Month]
RE: HOT Magnum filter... green water
Dave,
What you are forgetting is that nutrients within a tank changes over
time without additional input... even without plants. I could write and
write until my fingers fall off on the subject, but that is too
laborious for me, and would bore a bunch of people. It actually is a
complex interaction of many factors in the tanks and maintenance of the
tank. We can talk about it sometime if you wish.
As for suggestions of getting your green water tank up and going
again... get rid of the box filter (even though it only has floss)...
the snails are also unnecessary, and may be doing you harm. Keep just
the goldfish, and over-feed it. Given a bit of time, the green water
should come back. Again, I've got some triple-phosphate if you wish to
help the process along.
Cheers,
Mark
>
> Mark - thanks for backing me up,
>
> I'm not so sure the answer is nutrient only - that would be nice, but
too
> simple. Many tanks with terrible nitrate and phosphate levels start
out
> growing greenwater then clear up - only to grow lots of attached
algae.
> Keep in mind that there has usually been no change in the input/output
of
> amount or type of nutrients.
>
> What I did to crash my tanks was I added a few ramshorn snails (from
you -
> sabotage!) and some liquid plant food. Either it crashed from a
predator
> introduced by the snails or the plant food had much more copper or
zinc
> than
> it claimed - or some extra contaminant.
>
> I keep a pure culture of N. Occulata going in addition to my RIP
> greenwater
> tank. To try and restore the tank, I removed of 95% of the (clear)
water
> from the greenwater tank and reseeded it with a litter of high density
N.
> Occulata and brought it back up to 100% with GUILLARD's f2 algal
growth
> recipe with no luck.
>
> Here are the tank's stats:
> - 29 gals
> - 80+ watts of 7500K light
> - GUILLARD f2 algal growth recipe
> - 1 monster gold fish fed lots of cheap gold fish flakes (high PO4
content
> most likely)
> - A few ramshorn snails
> - Box filter with floss to remove particulates
>
> I would normally think that I have an algal predator like rotifers
after a
> 95% water change, only I don't see them under the microscope...
>
> Thoughts?
>
> Dave
>
> -----Original Message-----
> From: Mark Pearlscott [mailto:mark@pearlscott.com]
> Sent: Friday, July 02, 2004 11:22 AM
> To: gsas-member@thekrib.com
> Subject: RE: HOT Magnum filter... green water
>
> Well stated Dave. I think you hit the issue on the head. It is all
due
> to balance of nutrients. In the case of your tank where you were
> growing green water on purpose, you didn't have anything to consume
the
> nutrients except the green of the green water (unicellular algae).
Once
> the snails brought in bacteria, they could use some of the nutrients,
> and voila... no more green water.
>
> Usually (GSAS) people have plants in the tank, and so it is more an
> adjustment of nutrient levels, rather than making sure other organisms
> (bacteria, etc.) are present in sufficient numbers to take care of the
> nutrients that are available.
>
> So Elaine, you could try what Dave did and add snails or possibly more
> fish, etc. to try and push the balance of nutrients and nutrient
> consumers to a more favorable direction. Just a thought.
>
> Dave, if you really want to get green water going again in that tank
> with snails, I have some "triple-phosphate" that I bet would get it
> going. Excess phosphate is one of the leading causes of algae in
tanks
> (especially green water).
>
> Mark
>
>
> > -----Original Message-----
> > From: owner-gsas-member@thekrib.com
> [mailto:owner-gsas-member@thekrib.com]
> > On Behalf Of Walburger, David
> > Sent: Friday, July 02, 2004 10:13 AM
> > To: gsas-member@thekrib.com
> > Subject: RE: HOT Magnum filter
> >
> > Elaine,
> >
> > It seems that most greenwater problems happen with new tanks and
that
> they
> > seem to go away on their own with proper care.
> >
> > In my opinion, these green water problems occur due to unbalanced
> > microbial
> > populations in new tanks rather than unbalanced nutrient levels.
Over
> > time
> > microbes which compete with, or eat algae, will "balance" most tanks
> out.
> >
> > In fact, I've had a situation recently where an established tank
that
> I've
> > grown greenwater for months in on purpose, stopped producing
> greenwater
> > after the addition of some snails to take care of some surface algae
> on
> > the
> > glass. I've been unable to grow algae in it regardless of the
amount
> of
> > nutrients and light I've added.
> >
> > Dave Walburger
> >
> > -----Original Message-----
> > From: Kritter714@aol.com [mailto:Kritter714@aol.com]
> > Sent: Friday, July 02, 2004 8:41 AM
> > To: gsas-member@thekrib.com
> > Subject: Re: HOT Magnum filter
> >
> > In a message dated 6/30/2004 7:42:59 AM Pacific Standard Time,
> > mark@pearlscott.com writes:
> > If you are fighting green-water, then most likely you have a
nutrient
> > imbalance (if you are growing plants). Usually green water appears
in
> > Nitrate limited tanks, and so Nitrates are actually ADDED to remove
> the
> > green-water. It seems counter-intuitive unless you think about how
> all
> > the macro-nutrients interact with the growth cycle of plants.
> >
> > Mark
> > no plant in this tank history of this tank is I had it in storage
> for a
> > couple years because of a move and I was trying to sell it no sale
got
> > tired
> > of
> > storing it so I set it up in my spare bedroom ( which fyi has very
> little
> > sunlight exposure) cycled it and put a couple paradise fish in it
that
> > were
> > inteneded for my pond this spring. water turned green and I couldn't
> get
> > it
> > to stay
> > cleared when I got some new fish and tanks at the auction I ook it
> down
> > got
> > rid of the gravel and left the tank sit then re-set the tank up in
a
> > diferffent spot with different filter sand and fish water clear for
> three
> > days then
> > green has stayed that way since at least the end of april if not
> longer I
> > have tried to change water,the diatom filter, the algea detstroyer
> > treatment ,
> > and phosporus remover to no avail.
> > but in the last 2 days the water has begun to clear with no
change
> > except
> >
> > I tried to set up the other diatom filter must have scared it LOL.
> this is
> > the
> > first time in a lot of years of fish keeping I have had green
water
> I
> > hope
> > its over.
> > Elaine
> >
> >
> > --- StripMime Report -- processed MIME parts ---
> > multipart/alternative
> > text/plain (text body -- kept)
> > text/html
> > ---
> > ------------------
> > To unsubscribe from this list, please send mail to
> majordomo@thekrib.com
> > with "Unsubscribe gsas-member" in the body of the message.
Archives
> of
> > this list can be found at http://lists.thekrib.com/gsas-member/
> > ------------------
> > To unsubscribe from this list, please send mail to
> majordomo@thekrib.com
> > with "Unsubscribe gsas-member" in the body of the message.
Archives
> of
> > this list can be found at http://lists.thekrib.com/gsas-member/
>
>
> ------------------
> To unsubscribe from this list, please send mail to
majordomo@thekrib.com
> with "Unsubscribe gsas-member" in the body of the message. Archives
of
> this list can be found at http://lists.thekrib.com/gsas-member/
> ------------------
> To unsubscribe from this list, please send mail to
majordomo@thekrib.com
> with "Unsubscribe gsas-member" in the body of the message. Archives
of
> this list can be found at http://lists.thekrib.com/gsas-member/
------------------
To unsubscribe from this list, please send mail to majordomo@thekrib.com
with "Unsubscribe gsas-member" in the body of the message. Archives of
this list can be found at http://lists.thekrib.com/gsas-member/