Tom Giammarco, Jeonju, South Korea, June 11, 2011
Hello Larry, Years ago, I was inspired by some of the photos on the
Aqualand site to make an indoor pond and I wrote up step by step how I
did it when I eventualy started. I have attached it to this email along
with a couple of photos. If you can use it on your site, that's ok..if
not that is ok too--I know the article is quite long. In any case,
thanks for the inspiration!
TG
A: Pretty neat pics. I'll include them and your info
on a separate page of their own. I'll get the page done by tomorrow.
Thanks. LA
Hello. Before I begin, I would like to apologize for
the long letter. But quite a while ago I saw the pictures of the miniature
ponds on the Aqualand site and wanted to let you know they really inspired
me. I have always wanted an indoor pond and I eventually decided I would
make one.
TG
Getting Started
I live in an apartment so the pond I wanted to make had
to be indoors. I have a space I call the ‘sun room’ though it is really
more of an enclosed east-facing balcony. It has tall, floor to ceiling
windows that slide open and runs the entire width of my home. My houseplants
love it in summer but it is not insulated or heated and can get quite cool in
the winter although I do not believe it ever gets down to freezing
temperatures there. I knew that is where I would make the pond.
I looked online for ideas on how to start. In the
section on mini-ponds on this site, you mentioned using a child’s swimming
pool and I briefly thought about that but decided I would not like the way
that would look. I wanted something that would look natural. There was
another website that showed a man building a pond in his home. He built up
the room with soil and stones and sunk a pool or tarp into that to make his
pond. While I do own my apartment and can do what I want with it, this did
not seem like a practical idea. In February this year, maybe six months
after considering and rejecting ideas (bathtub frames, troughs, wooden
barrels…) I wandered into a local independent pet store for fish food and
saw they had a faux stone mini-pond on display. I commented that I would
like something like that for my home but bigger and the man said that the
company selling them custom designs the forms. The pet store owner was happy
to contact them for me and I ordered a pond roughly 6 feet long, 2 feet wide
and 10 inches deep. It was ready to be picked up in two days and cost about
130 USD.
Initial Problems
Driving home with the fresh pond form in the car, I
nearly suffocated. The smell of whatever chemical was used to seal it or
make it was overwhelming. I let it air out in the sunroom for a few days,
but the smell was still very strong. I tried washing it a few times, but I
could not get rid of it. Then I had an idea. I filled the pond with water
but put in about five gallons of water siphoned from an established aquarium
I have. I thought maybe whatever microbes or bacteria were in that water
would be able to biologically process out any dangerous chemicals. After
about a week or ten days of just letting the water sit, the smell went away.
Instead I had a new problem. Algae…
It was not March, the days were longer and the weather
was warmer. The pond in my house responded to that by producing a huge algae
bloom. I wouldn’t have minded at all if it were just a coating of algae on
the sides and bottom of the pond. I think that looks good and I welcome it.
However, this was a bubbling green mess that would more commonly be called
pond scum. Skimming it out didn’t help and the water quickly turned a pea
green. I realized I needed something I was hoping to avoid. I needed a
filter. I had not wanted one originally because I wanted floating plants and
paradise fish. Neither of these really appreciates moving water. However, I
bought a standard submersible, powerhead filter. I also used stones to break
up and reduce the flow of the water. It worked. By directing the outflow
into the maze of stones I made, the surface of the water remained relatively
still while an attractive stream of bubbles came up out of the stones. Even
more importantly, the water cleared up within 2 days.
Choosing the plants and fish
By April, it is consistently warm enough for my
houseplants to go into the sunroom and local nurseries start selling plants
outside. I wanted some marginal plants and bought some dwarf papyrus
Cyperus papyrus, a tatting fern Athyrium filix-femina and peacock
moss Selaginella uncinata and arranged these to rest with their pots
in the water. By the end of April, after the water had aged for two and a
half months, I felt ready to add fish and submerged/floating plants. I know
of one website that sells both local and tropical fish and plants. I wanted
mostly local things so I would not have to worry about the temperature. I
did order two kinds of tropical plants water hyacinth Eichonria crassipes
and water lettuce Pistia stratiotes. The rest of the plants were
local: water poppies Hydrocleys nymphoides, frogbit Hydrocharis
dubia, giant salvinia Salvinia molesta and hornwort
Ceratophyllum spp. Any one of these plants could easily overrun the
pond if I am not careful, but everything I have been reading about paradise
fish in the wild indicates they love shallow, overgrown ditches and ponds,
so I thought they would be perfect—I would just have to keep up with
weeding.
I chose paradise fish,
Macropodus opercularis,
because they are local and thus able to stand the daily and seasonal
temperature fluctuations. The website I ordered them from sold them in
batches of 5. On the one hand, I was happy with that because I thought it
would ensure I would have both sexes in the pond. However, I was also
worried about the aggression I have seen these fish possess when I once
raised them in an aquarium, especially before and after laying eggs. I
crossed my fingers and hoped the pond was big enough where they can avoid
each other if they wished. The fish and the plants arrived on May 4. They
were about an inch and a half long—not yet full-sized. While I set to work
potting up the water poppies, I let the fish adjust to the temperature of
the water. When I released them into the pond, they all made a beeline for
the water lettuce and hid en masse beneath it.
TG
Indoor pond May 19, 2011.
The living pond
The pond plants, as expected, grew quite quickly. The
water poppies wasted no time putting up floating leaves and the water
hyacinth and salvinia multiplied rapidly. However, the water lettuce is the
clear winner in how fast it spreads. I went from four semi-mature plants to
over four dozen in the space of four weeks. They spread via runners like
strawberries making beautiful floating patterns on the surface of the water.
The fish did well too. The non-aggression they were showing each other gave
way to slightly territorial behavior. However, it was nothing serious…until
May 19 when one of the males built a nest. He became more aggressive but,
with the growing number of hiding places among roots, rocks and hornwort, I
did not notice even one torn fin. I photographed the nest but did not think
very much about it. Although the fish seemed bigger than when I first put
them in, even though just a few weeks had passed, I thought they were too
young to breed.
The leaves of the water poppy last about three weeks
but there are always new one coming out. On May 24, I went to remove a
couple of dead leaves. But, when I lifted the leaf up, I was startled by a
burst of movement in all directions. Baby fish were hiding under the leaves
and, upon closer inspection I could see them swimming among the hornwort as
well. I could not view all of them at once, but given the small size of the
original nest, I did not think there could be many—maybe a dozen. I had not
known they were there and thus not offering them any special food, but
regardless of that, they were doing quite well and were very active. The
adult fish seem to be ignoring them completely. I have since started to add
very fine powdered food to supplement the fries’ diet, and they eat side by
side with the adults without any incidents. When they do feel threatened by
the adults, the baby fish ‘hop’ away from them…jumping out of the water
three or four times until they are far enough away.
TG
Male paradise fish with bubble nest.
As I write this, there are now swarms of baby paradise
fish. The same day I found the babies, I saw another, larger, nest had been
built near the tatting fern. I estimate this produced about 30 fry which are
about half the size of their older cousins. The plants have grown even more
and this has reduced aggression considerably. I think this has to do with
the reduced visibility that the floating leaves, roots and stems afford.
This morning, June 11, I went to remove a mass of alga among the papyrus
that reminded me of the earlier pond scum—green and bubbly. As soon as my
hand entered the water, I was attacked by one of the male paradise fish who
bit me four times in rapid succession. Fortunately, their mouths and teeth
are small, so it was more like bumping into me rapidly. I quickly removed
my hand and watched as he started rebuilding his nest I accidentally
destroyed. Unlike the other nests where were only bubbles, this male had
incorporated algae he was pulling off the plant stems into the nest. He is
still working on it and it is currently about half an inch high and four
inches long. I photographed him while he worked and noticed eggs were
already present in the nest. As a side note, I have never had to remove the
females and all have survived all three spawnings I am aware of without
injury and, judging by their body size, are ready to spawn again. Books here
in Korea list the natural breeding time for paradise fish as June and July.
If their actions do date are any indication, the same individuals produce
numerous spawn during that time period.
TG
The water poppies have started blooming as well. They
were frustrating because although there were blooms every day of the week,
they only were blooming in the day when I was at work and the flowers only
last one day each. However, today is Saturday and I was finally able to see
them open and take a picture.
My indoor pond has proven to be very satisfying,
rewarding and relaxing. The changes that take place in it are visible on a
day to day basis as the plants grow so quickly. I am looking forward to
seeing if the frogbit and the water hyacinth will flower in the heat of
summer. I also look forward to watching the paradise fish daily… they are
much more interesting in this setting than when I kept them in an aquarium.
Tom
© 2011
LA Productions
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