When using Interpet Sludgebuster or any other of these sludge clearing
bacteria agents is it necessary to turn off the UV ?

I'm wondering if the UV will kill off the useful bacteria.

tnx

JC

wrote in message
...
When using Interpet Sludgebuster or any other of these sludge clearing
bacteria agents is it necessary to turn off the UV ?

I'm wondering if the UV will kill off the useful bacteria.
==================================
*Note: There are TWO "Koi-Lo's" on this NG*

The useful bacteria are mainly on all pond surfaces and in your filter. Not
many are in free in the water. It's better to turn off the lights when you
add bacteria and give it a chance to settle. Leave the UV lights off for a
least 24 hours. No use adding them and then killing many of them off as
they go through your UV light unit.
--
Koi-Lo....
Frugal ponding since 1995.
Aquariums since 1952.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
~~~ }((((o ~~~ }{{{{o ~~~ }(((((o

Koi-Lo wrote, On 30/04/2006 15:05:

wrote in message
...
When using Interpet Sludgebuster or any other of these sludge clearing
bacteria agents is it necessary to turn off the UV ?

I'm wondering if the UV will kill off the useful bacteria.
==================================
*Note: There are TWO "Koi-Lo's" on this NG*

The useful bacteria are mainly on all pond surfaces and in your filter.
Not many are in free in the water. It's better to turn off the lights
when you add bacteria and give it a chance to settle. Leave the UV
lights off for a least 24 hours. No use adding them and then killing
many of them off as they go through your UV light unit.

Depends if you have a UV Sterilizer or just a UV Clarifier. Clarifiers
are the most common type. UV causes the algae to coagulate making it
easier to filter out, it goes between the pump and filter. Very unlikely
to kill bacteria in solution.

To kill bacteria you require a very powerful UV source. Probably needs
to be installed after the filtration stage for best water transparency.

Sounds like a risky business to me, it takes high doses of UV to mutate
bacteria in the lab. Flowing water past a lamp for fractions of a second
seems pretty pointless. More likely to produce mutant strains than
sterilisation I would think.

--
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DavidM

*Note: There are TWO "Koi-Lo's" on this NG*

"DavidM" wrote in message
...
Koi-Lo wrote, On 30/04/2006 15:05:
The useful bacteria are mainly on all pond surfaces and in your filter.
Not many are in free in the water. It's better to turn off the lights
when you add bacteria and give it a chance to settle. Leave the UV
lights off for a least 24 hours. No use adding them and then killing
many of them off as they go through your UV light unit.
========
Depends if you have a UV Sterilizer or just a UV Clarifier. Clarifiers are
the most common type. UV causes the algae to coagulate making it easier to
filter out, it goes between the pump and filter. Very unlikely to kill
bacteria in solution.

I've read in several places to turn your UV light off for (so many hours)
after adding any type of bacterial product. It's so easy to do - why not?

To kill bacteria you require a very powerful UV source. Probably needs to
be installed after the filtration stage for best water transparency.

Sounds like a risky business to me, it takes high doses of UV to mutate
bacteria in the lab. Flowing water past a lamp for fractions of a second
seems pretty pointless. More likely to produce mutant strains than
sterilisation I would think.

You're probably right but not everyone has water going through their UV
filter at a high rate of speed. I don't know if that would matter or not. I
know ours runs through the UV unit at around 250gph in the smaller 800g pond
and you can see a difference in 24 hours. In less than a week it's clear of
visible algae.
--
Koi-Lo....
Frugal ponding since 1995.
Aquariums since 1952.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
~~~ }((((o ~~~ }{{{{o ~~~ }(((((o

Koi-Lo wrote, On 30/04/2006 16:39:
I've read in several places to turn your UV light off for (so many
hours) after adding any type of bacterial product. It's so easy to do -
why not?

Yeah, better to be safe than sorry. There's no point cooking bacteria
that you've just added to the pond.

You're probably right but not everyone has water going through their UV
filter at a high rate of speed. I don't know if that would matter or
not. I know ours runs through the UV unit at around 250gph in the
smaller 800g pond and you can see a difference in 24 hours. In less
than a week it's clear of visible algae.

I was jumping around between different ideas. I don't doubt that UV
lights help remove algae. The water speed is probably not an issue in
that respect because it's just altering some sugars (I think) in the
cell wall that cause adhesion. That has nothing to do with killing
bacteria as claimed by the UV sterilisers though. I was questioning
whether they are able to effectively kill all bugs in flowing liquid.

On the subject of killing _all_ bugs, do people use hydrogen peroxide
producing powders for killing bacteria and parasites. They are supposed
to replicate the pumped H2O2 solutions used in fish farms. I spoke to a
guy trying to sell some at a UK Koi show, I need more convincing though.

David



--
-------
# | |
:===[==¬|====;
[/ \|___|_/ \|
\_/ \_/
DavidM

*Note: There are TWO "Koi-Lo's" on this NG*

"DavidM" wrote in message
...
Koi-Lo wrote, On 30/04/2006 16:39:
I've read in several places to turn your UV light off for (so many hours)
after adding any type of bacterial product. It's so easy to do - why
not?

Yeah, better to be safe than sorry. There's no point cooking bacteria that
you've just added to the pond.

Exactly. That's why I pull the plug when I add KoiZyme if I'm using the UV
units we have. This year the algae is bad in the 2000g pond, so I plan to
hook it up this week.

You're probably right but not everyone has water going through their UV
filter at a high rate of speed. I don't know if that would matter or not.
I know ours runs through the UV unit at around 250gph in the smaller 800g
pond and you can see a difference in 24 hours. In less than a week it's
clear of visible algae.

I was jumping around between different ideas. I don't doubt that UV lights
help remove algae. The water speed is probably not an issue in that
respect because it's just altering some sugars (I think) in the cell wall
that cause adhesion. That has nothing to do with killing bacteria as
claimed by the UV sterilisers though. I was questioning whether they are
able to effectively kill all bugs in flowing liquid.

Not all bugs. I believe they do kill some bacteria but not the larger
parasites free in the water. Since killing bacteria wasn't why we bought
them, I never researched it but took the advice I saw - and shut them off
when adding "good" bacteria. I leave them off at least overnight.

On the subject of killing _all_ bugs, do people use hydrogen peroxide
producing powders for killing bacteria and parasites. They are supposed to
replicate the pumped H2O2 solutions used in fish farms. I spoke to a guy
trying to sell some at a UK Koi show, I need more convincing though.

David

That I couldn't tell you as I use Potassium Permanganate or Formilin if
necessary. I use Dimilin for anchor worm but haven't seen that problem in
years.
--
Koi-Lo....
Frugal ponding since 1995.
Aquariums since 1952.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
~~~ }((((o ~~~ }{{{{o ~~~ }(((((o