Well, bettas Betta splendens are
really good jumpers, even though
they may not look capable of it
with those cumbersome-looking
fins. Besides, if the water level in the tank
is approximately even with the tops of the
dividers, it wouldn’t take much effort for
Miharu to flip himself into an adjacent
Why is this particular betta exhibiting this
behavior while your other four specimens do
not? There are several possible explanations.
It could be nothing more than the natural
variation in behavior often seen among
individuals of a species. In other words, it
could be the case that Miharu is just naturally
prone to jumping more than the others.
Another possibility is that Miharu finds some
element in his compartment disagreeable and
is trying to get away from it—for example,
a different rate of water flow, proximity to
the heater, more human traffic on his side
of the tank, etc. If Miharu is in the middle
compartment and is able to see the other
two bettas through or around the divider, yet
another possibility is that he is intimidated by
Kyrios and is trying to get away from him by
leaping in the opposite direction.
It’s not too surprising that all of your
bettas hide among plants when a stranger
approaches. Many aquarium fish learn to
recognize their keepers and will even come
out of hiding and approach the front of
the tank when they are present—probably
because food very commonly appears in
the water shortly after the keeper arrives.
But someone else approaching the tank will
trigger a natural flight response.
I have a 55-gallon glass
aquarium, and I’m wondering
just how long these tanks can last. I have
always had a fear of these just breaking
or developing leaks. Please put my fears
to rest! Is the glass tempered, and are the
seams electronically sealed? Thank you.
While I can’t give you any
sort of precise lifespan for
your 55-gallon tank, a well-constructed, carefully handled,
and properly set-up glass aquarium can
provide many, many years of faithful service
without breaking or developing a leak.
The 75-gallon glass tank that currently
Being bottom dwellers that regularly swim to the surface for gulps of air, Corydoras catfish
greatly benefit from shallower, wider tanks.
Jumping is natural for Betta splendens, which will do so for reasons ranging from
dissatisfaction with its surroundings to individual inclination.
occupies my dining room, for example, has
been in operation for 14 years and is still
holding up very nicely (knock on wood),
and I’ve heard many accounts of tanks
lasting several decades with no problems.
My 75-gallon replaced a 55-gallon tank that
held up almost as long. I chose to replace
the 55-gallon merely out of an abundance
of caution (and because I wanted a bigger
tank), not because it failed in any way.
That being said, it’s not unheard of for
glass tanks to leak or break. In fact, the
same week I purchased the aforementioned
75-gallon tank, a friend of mine bought
an identical tank from the same dealer.
Her tank began to leak immediately; mine
didn’t. It’s also important to note that leaks
are much more likely to develop when
an aquarium is not properly leveled from
front to back and side to side on its stand
(something I experienced with a 29-gallon
tank some years ago, incidentally). When an
aquarium is out of level, the uneven water
pressure exerted on the seams, which are
bonded with silicone, can cause them to fail
over time. Catastrophic failures are very
rare, however, and usually—though not
always—result from “operator error,” such
as a sharp impact to the glass from either
outside or inside the tank.