small coldwater aquarium

A bit surprised there weren't many posts about this,
After many years I'm thinking about keeping an aquarium (again). It
must be a real small one (6 gal) and if I can help it I'm going to be a
good (cheap) citizen and save energy by not heating it. There's also
the problem that heaters for such small aquariums are rare (but
possible to find). In fact I only remember seeing them sold commonly in
Japan, where people live in cramped apartments and probably keep tiny
aquariums too.
My room gets as cold as about 10 deg. C in winter when no one's around
and the heating is off. Unfortunately I understand that this can cause
large heat fluctuations which fish don't really survive? Except perhaps
for a few desert species that have to put up with the same in nature?
But they're far too exotic and hard to find.
Brings me onto the topic about what to keep in such a setup if it's
ok--of commonly available stuff, only goldfish take such low
temperature (if it's not too sudden) but they grow far too big for a
tiny aquarium. Plants are less of a problem, I'd decide on hornwort
which takes low temperatures but has to be pruned rather often in such
a small tank.

Seb

wrote in message
ups.com...
A bit surprised there weren't many posts about this,
After many years I'm thinking about keeping an aquarium (again). It
must be a real small one (6 gal) and if I can help it I'm going to be a
good (cheap) citizen and save energy by not heating it. There's also
the problem that heaters for such small aquariums are rare (but
possible to find). In fact I only remember seeing them sold commonly in
Japan, where people live in cramped apartments and probably keep tiny
aquariums too.
My room gets as cold as about 10 deg. C in winter when no one's around
and the heating is off. Unfortunately I understand that this can cause
large heat fluctuations which fish don't really survive? Except perhaps
for a few desert species that have to put up with the same in nature?
But they're far too exotic and hard to find.
Brings me onto the topic about what to keep in such a setup if it's
ok--of commonly available stuff, only goldfish take such low
temperature (if it's not too sudden) but they grow far too big for a
tiny aquarium. Plants are less of a problem, I'd decide on hornwort
which takes low temperatures but has to be pruned rather often in such
a small tank.

Seb


white cloud minnows
golden medaka
pacific blue eyes
zebra danio
rosy barb
paradise fish
gambusia
hmmmm...... not sure how happy any would be at 10deg C but theres 7 random
fish you could look into
all are tough and do well with a mere air powered sponge filter
just wash the filter sponge with water drawn from the aquarium
and avoid doing water changes of greater than 50%!!
ya should be fine
otherwise
go catch some locals from a drain
w0000t

Hi..

A bit surprised there weren't many posts about this,

Because 6g aren't small but _very_ small - even for a dwarf
fish tank..?

After many years I'm thinking about keeping an aquarium
(again).

Fine..!

It must be a real small one (6 gal) and if I can
help it I'm going to be a good (cheap) citizen and save
energy by not heating it.

Well.., in my mind it hasn't anything to do with parsimony..

In a heated house cold water or cool water tanks are of
course an alternative..

There's also the problem that
heaters for such small aquariums are rare (but possible to
find). In fact I only remember seeing them sold commonly
in Japan, where people live in cramped apartments and
probably keep tiny aquariums too.

Welcome to the NANO world..! :-) There are several 10W
permanent heaters or thermostat heaters available..

My room gets as cold as
about 10 deg. C in winter when no one's around and the
heating is off.

Absolutely no prob for White Cloud Mountain Minnows (WCMM)
or Heterandria formosa..

I'm a real "Marcopodus" fan..! :-) Please don't chose
Paradise Fish..! I've been familiar with them 30+ years and
it's no joke but a 6g tank is absolutely no good idea for
keeping them..!!!!

Unfortunately I understand that this can
cause large heat fluctuations which fish don't really
survive?

No prob with Heterandria formosa and WCMM..

Except perhaps for a few desert species that have
to put up with the same in nature? But they're far too
exotic and hard to find.

Sorry.., those are expert fish(es)..!

Plants are less of a problem, I'd decide on
hornwort which takes low temperatures but has to be pruned
rather often in such a small tank.

Well.., you were surprised how many plant that prefer
_lower_ temperatures are available..

Good luck..!

--
cu
Marco

Marco Schwarz wrote:

Hi..

A bit surprised there weren't many posts about this,

Because 6g aren't small but _very_ small - even for a dwarf
fish tank..?

After many years I'm thinking about keeping an aquarium
(again).

Fine..!

It must be a real small one (6 gal) and if I can
help it I'm going to be a good (cheap) citizen and save
energy by not heating it.

Well.., in my mind it hasn't anything to do with parsimony..

In a heated house cold water or cool water tanks are of
course an alternative..

There's also the problem that
heaters for such small aquariums are rare (but possible to
find). In fact I only remember seeing them sold commonly
in Japan, where people live in cramped apartments and
probably keep tiny aquariums too.

Welcome to the NANO world..! :-) There are several 10W
permanent heaters or thermostat heaters available..

My room gets as cold as
about 10 deg. C in winter when no one's around and the
heating is off.

Absolutely no prob for White Cloud Mountain Minnows (WCMM)
or Heterandria formosa..

I'm a real "Marcopodus" fan..! :-) Please don't chose
Paradise Fish..! I've been familiar with them 30+ years and
it's no joke but a 6g tank is absolutely no good idea for
keeping them..!!!!

Unfortunately I understand that this can
cause large heat fluctuations which fish don't really
survive?

No prob with Heterandria formosa and WCMM..

Except perhaps for a few desert species that have
to put up with the same in nature? But they're far too
exotic and hard to find.

Sorry.., those are expert fish(es)..!

Plants are less of a problem, I'd decide on
hornwort which takes low temperatures but has to be pruned
rather often in such a small tank.

Well.., you were surprised how many plant that prefer
_lower_ temperatures are available..

Good luck..!

--
cu
Marco

Well I didn't know WCMMs were that cold resistant, so I guess I got a
solution. Thanks for replies,

Seb

Well I didn't know WCMMs were that cold resistant, so I guess I got a
solution. Thanks for replies,

Seb


they are pretty solid fish
danios and paradise will handle
but white clouds ain't afraid of da cold