Today's Pond Q&A
In this issue:
- Goldfish Emergency
- Don't Suck Your Polywogs Out of the Muck
- Sand Filters On Ponds
- Keeping Hyacinths out of your skimmer
With pond season upon us, the questions are really coming in..
We've got four good pond questions for you today, so here goes:
I have a problem with my goldfish. i had her for 3 years and i
dont want my little friend to die. i would like you to tell me
one thing my fish has fin rot and i am not really sure how to
treat it and it looks pretty bad so if you can give me some advice
please email me at firstname.lastname@example.org
Thank you very much
We always recommend pond salt to reduce stress and help with
infections. If your fish has fin rot, there is likely something
wrong with the water and a partial water change would also help.
He will 'perk up' with the new water (be sure to dechlorinate!)
You can find more information about pond salt here:
Depending on the size of your pond, you may want to treat the
water with an anti-bacterial medication.
Here are some that are good:
Hope this helps,
I have a 12x19x3ft pond that I designed and installed in my back
yard. I have a sort of ecosystem going. There is some decaying
matter in the pond but the water is pretty clear. I have frogs
that come from the pollywog's hiding out in this gunk in the
bottom of the pond, and I adore them. Also baby fish (koi and
goldies) that get bigger when the weather warms. I bought "muck
vac" and have enough water pressure for it to work to vacuum out
this pond, but I definitely don't want to vacuum out the baby
fish and polywogs. Do you have any suggestions?
Thanks in advance, a faithful reader
That's a tough one, it's hard to vacuum out the muck without
removing the little creatures living in the pond like baby fish,
tadpoles, or similar.
One way to handle the sludge in the bottom of the pond naturally,
is to use a microbial additive product like Microbe-Lift. This
will help digest and decay the organic sludge in the pond, while
adding beneficial bacteria to the pond.
You can find out more about Microbe-Lift here:
I had a pond installed a couple of years ago. It is 15' by 7',
kidney shaped. It is approximately 38" deep. There is a
waterfall that is approximately 3 1/2' high. The person that
installed it put a sand filter that is used for swimming pools,
pump and skimmer box.
I added an additional small filter on the bottom of the pond to
get the water to clear up last year. All I know is the sand
filter is a huge pain in the butt.
It has to be constantly backflushed and does not pump the water
with much velocity to the water fall. I have goldfish in the
pond right now.
I am thinking that I need a different set up and was wondering if
you might have some suggestions for replacement pumps and
Well everybody here knows how I feel about sand filters ;-)
Sand filters are hands down just about the WORST possible choice
for a pond, but unfortunately, many landscapers and pond builders
will install these on ponds, (because they don't know any
The problem with sand filters on ponds is that they are great for
polishing the water in pools, but terrible for filtering pond
water which had more particulate matter and waste in the water --
and that's why they clog so quickly.
The other major problem with sand filters is that they are very
inefficient biological filters and can grow anaerobic bacteria,
which can be dangerous. In low oxygen environments, anaerobic
bacteria thrive and are not healthy for a pond ecosystem.
so the best answer I have for you is to get an Aquabead filter
These are the best pond filters we've come across in ten years
(and believe me I've seen them all...) If you would like more
information, please contact me directly or click on the link
Aquabead Pond Filters:
Hope this helps,
Question: How do I float water hyacinths in the pond, where I
have a pond skimmer and everything ends up in the skimmer?
Patricia J. O'Donnell, Esq.
Try making a floating circle out of black tubing, taping together
with electrical tape. Keeps hycacinths together, and out of the
skimmer. Plus, they bloom better this way!