Tadpoles are turning cannibalistic. What should I do? - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 11-07-2017, 04:43 AM Thread Starter
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Tadpoles are turning cannibalistic. What should I do?

Tadpoles are turning cannibalistic. What should I do?

I have read that tadpoles turn cannibalistic when they are desperate and there is no food. However I have put in so many algae wafers that the tadpoles could not finish them and they are sitting on the bottom of the tank fully available yet some of the tadpoles are still eating other tadpoles everyday.

Maybe one day they did not get enough food and turned cannibalistic then refused to eat normal food once they got the taste? I don't know.

Any suggestions here? Maybe I should put in shrimp pellets even thought you are not suppose to give tadpoles meat products since they are supposed to be vegetarians ?

Thanks.
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post #2 of 12 (permalink) Old 11-08-2017, 01:22 AM
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Originally Posted by Merriallynchian View Post
Tadpoles are turning cannibalistic. What should I do?

I have read that tadpoles turn cannibalistic when they are desperate and there is no food. However I have put in so many algae wafers that the tadpoles could not finish them and they are sitting on the bottom of the tank fully available yet some of the tadpoles are still eating other tadpoles everyday.

Maybe one day they did not get enough food and turned cannibalistic then refused to eat normal food once they got the taste? I don't know.

Any suggestions here? Maybe I should put in shrimp pellets even thought you are not suppose to give tadpoles meat products since they are supposed to be vegetarians ?

Thanks.
So what you are saying is they are eating each other but are supposed to eat veggies only?
Maybe leave the book a bit closer as it seems they have not read it close enough? On the other hand, maybe which tadpoles is the big point to ponder. The tadpoles I think of grew up to be frogs who would eat most anything that fit their mouth.
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post #3 of 12 (permalink) Old 11-08-2017, 03:00 PM
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"Any species that is the same as your own would theoretically be an ideal diet because they are going to contain all of the nutrients that you require for growth and development, in supposedly the correct proportions," study co-author Dale Jefferson told Live Science. "You can basically get everything you need from one source."

^ This is one way to look at it...
(Taken from this article)

Or maybe they are thinning the herd, or taking out weaker individuals?

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post #4 of 12 (permalink) Old 11-08-2017, 04:01 PM
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What species are they?

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post #5 of 12 (permalink) Old 11-29-2017, 11:12 PM Thread Starter
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What species are they?
I'm not sure, they just look like normal tadpoles you find at a lake.

Sorry
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post #6 of 12 (permalink) Old 11-29-2017, 11:55 PM
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I would guess it is just the normal behavior for things that are placed in abnormal spaces likes our tanks. Nature is a pretty mean situation when we apply human thinking but the big ones eating the small ones is actually a pretty logical, natural process. If there is not room for all to survive in a species, it is often going to be the big ones eating the small ones.
Maybe there is a lesson there if we look close enough?
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post #7 of 12 (permalink) Old 11-30-2017, 12:20 AM
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post #8 of 12 (permalink) Old 11-30-2017, 12:51 AM
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I know for a fact that they eat Hygrophyla difformis. They will strip it to the stem. My tadpoles were bullfrog tadpoles. Tadpoles really foul the water, so you need to do really frequent water changes. if they are eating each other, perhaps they lack protein in the diet. Try some dead bugs or worms.

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post #9 of 12 (permalink) Old 11-30-2017, 12:51 AM
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Sounds like other tadpoles are more appetizing than expeller compressed fish meal and spirulina. You might have better luck throwing some live food in. I bet red worms would be just as yummy (and a lot easier to eat) as siblings.
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post #10 of 12 (permalink) Old 11-30-2017, 02:23 AM Thread Starter
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I know for a fact that they eat Hygrophyla difformis. They will strip it to the stem. My tadpoles were bullfrog tadpoles. Tadpoles really foul the water, so you need to do really frequent water changes. if they are eating each other, perhaps they lack protein in the diet. Try some dead bugs or worms.
Do you mean Water Wisteria ?
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post #11 of 12 (permalink) Old 11-30-2017, 07:15 PM
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Do you mean Water Wisteria ?
Yes. That's it.

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post #12 of 12 (permalink) Old 12-02-2017, 01:59 AM
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Separate them?


Or lower the population density? How many are there? Did you collect them? if so, where?

The species would be helpful. Not all tadpoles are pure herbivores; some Oophaga spp. only eat eggs laid by their mother, for example.

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