Hydra is freshwater animals that are related to jellyfish and sea anemones.
They are small, usually less than an
inch long, and can be found in a variety of habitats including ponds, streams,
and marshes.
To clean a hydra, you will need to
first catch them using a net or other tool. Then, place them in a clean
container with fresh water.
Change the water in the container every day to keep them clean. It is also important to keep their tank or container clean, and to remove any debris or uneaten food.
It's important to note that handling
of these animals should be minimized as they are delicate and can be easily
killed by rough handling, says chaktty.
Problems in the aquarium
An extraordinarily large hydra can be quite dangerous for a young shrimp.
However, since hydra generally remain
rather small in the aquarium, in principle only very small baby shrimps such as
the Blue Bee or newly hatched young shrimp are at risk.
Freshwater polyps multiply rapidly,
especially when they are fed copious amounts of fine powdered, frozen or live
food and also when there are a large number of mussel crabs or hoppers - often
the aquarist only then notices them.
A heavy hydra infestation can be
extremely stressful for shrimp, according to formally.
If they can no longer sit down in
the aquarium without getting nettled, something should be done.
A weak infestation with hydra is
actually no reason to unpack the club.
On the contrary, many aquarists
enjoy these fascinating coelenterates.
Hydra do not harm fish either.
However, tiny fish larvae can be preyed on by large specimens.
Especially in rearing tanks, in
which Artemia is fed, for example, and in which the baby fish "stand in
the feed", hydra can multiply exceptionally strongly.
There may then be a need for action
here.
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Remove Hydra in the following ways
Starvation
If the infestation is low, the
population of polyps can be controlled and suppressed via the amount of food.
However, starvation does not work
with the green hydra, these animals live in symbiosis with chlorella algae,
which can supply them with energy over a long period of time, so they do not
depend on a regular supply of food.
Predators
Also some animals eat hydra like
labyrinth fish or the pointed mud snail.
Here, however, the entire population
is hardly eradicated, but the number of hydra can be controlled very well in
this way.
Using salt
With a salt treatment, the entire
pool can be freed from hydra, here a salt quantity of 3-5 g per liter is
recommended by healthpally. After about 3-5 days, the hydra die off.
Nebulizing
Alternatively, if the infestation is
low, the saline solution can also be applied directly to the polyps with a
syringe, which will die off within a short time.
In addition to salt, other agents that have
been found to kill Hydra when "fogged" directly include Easy Carbo ,
lemon juice, pomegranate juice, boiling water, and iodine.
Flubenol & Panacur
Also wormers (anthelmintics) such as
Panacur and Flubenol are deadly for hydras.
It can be assumed that 0.25 mg
fenbendazole (the active ingredient in Panacur) or 0.1 mg flubendazole (the
active ingredient in Flubenol) per 1 liter of aquarium water is sufficient.
However, you should note that these
drugs a) may only be prescribed by a veterinarian and b) are fatal to many or
all snails in the aquarium.
They should therefore only be used
in the case of a very severe infestation with hydra where all other control
measures have failed.
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