Betta Wizard
Welcome to the Wizards
Class - Vinegar Eels 101
(Anguillula acetic/turbatrix)
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Now pay attention, there will be a quiz at the end of the class.
ha ha, just kiddding
Vinegar Eels:
Anguillula acetic/turbatrix, is a free living, non-parasitic roundworm that is
adapted to living in a low pH (acidic) medium. It is an excellent live food for
native fish fry. This is one of the easiest live foods to culture and maintain.
They are raised in a mixture of apple cider vinegar, apple juice, and water.
The vinegar eels can be cultured in any glass or plastic bottle (jar etc.).
I use long neck wine bottles which I salvaged at a re-cycling plant for free.
The advantage of vinegar eels over microworms is:

Vinegar eels are just a little smaller than microworms. This makes them ideal for new born betta fry.

Vinegar eel cultures require little or virtualy no attention, They can be ignored for weeks or even months. (I have had mine for over a year and have changed the medium only once in this time.)

Vinegar eel cultures don't have the unpleasant smell that microworm cultures do. (If you don't mind the mild smell of vinegar. Personally I don't notice any smell except when harvesting.)

Vinegar eels will live for a long time in the Aquarium. (Approximately 36 hours.)

Vinegar eels stay towards the surface of your tank.
Disadvatages of vinegar eels over microworms is:

Vinegar eels take 7 to 10 days to grow, as their gestation period is longer than microworms.

Harvesting has been difficult. (New methods have been developed as we will see later.)
Recomendations for culture mixture: (This is the mixture that works best for me.)

75% Apple Cider Vinegar (must use
apple cider vinegar only.)

25% Water.

1 Ounce of pure apple juice.

Some people put a small slice of a peeled apple in their medium, but I have found that it is not neccesary.
Starting your Vinegar Eel culture:

Fill a long neck bottle to a point where the bottle starts to taper up to the neck (see step 1 below) with your pre-mixed medium . Add your vinegar eel culture. (You should have enough culture to do at least 3 bottles) Do not use a cap, place a piece of filter floss in the neck, and set aside at room temperature for 7 to 14 days. Light does not affect vinegar eels. After 7 to 14 days you should be able to harvest your eels. (Hold the bottle up to a light source and using a magnifying glass. you should be able to see the tiny white eels swimming in the medium near the top.)
Harvesting you Vinegar Eels:

Add medium, fill to the point where the bottle ends and the neck starts.
(see step 1 below).

Place a plug of clean filter floss into the neck and then fill the rest of the way to
the top with clean fresh water (see step 2 & 3 below).

A few hours later many eels will have migrated thru the floss into the freshwater
and can be easily harvested, (the vinegar and water stay separated so you don't have to worry about getting vinegar into your fry tanks.) (I use a turkey baster or a craft syringe to suck the eels out, and then add them directly to my fry tank.)

After harvesting your eels pour enough medium from your bottle into another
bottle to lower the medium back down to the widest part of the bottle.

Guess what?? You just started another culture in your new bottle.

Set both bottles aside for another 7 to 10 days.

Use one of your other bottles for your next harvest. (I have 14 to 20 bottles
going at once so that I can keep switching them.)
Wasn't that simple?? What were you worried about??
No messy coffee filters, very little smell, and very little
work.
Harvesting proceedure:
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