Why do you clean up unhatched eggs?
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Why do you clean up unhatched eggs?

This is a discussion on Why do you clean up unhatched eggs? within the Advanced Freshwater Discussion forums, part of the Freshwater Fish and Aquariums category; --> I know why the tank has to be cleaned because of the waste there from the fish. But when you have unhatched eggs which ...

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Why do you clean up unhatched eggs?
Old 05-14-2014, 03:51 PM   #1
 
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Question Why do you clean up unhatched eggs?

I know why the tank has to be cleaned because of the waste there from the fish. But when you have unhatched eggs which are rich in protein, and have a strong potential for nutrients, why would you clean that up? It isn't waste that you are removing. Somebody please tell me with good data on this... I know you give birds the old, used or unhatched eggshells and material inside of it that are left over. This is very good for them. Why wouldn't the new hatchlings get benefit from the eggs?


Read more: could this be cory's eggs?
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Old 05-14-2014, 05:37 PM   #2
 
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Anything dead, including eggs, is waste. As someone who has bred multiple species of fish, I can confidentially tell you that dead eggs and fry get nasty quite quickly. One of the best ways to distinguish between living and dead eggs for some species is to see if they are covered in fungus. Dead eggs rot, and in doing so release ammonia which is dangerous for all fish, fry especially. I can assure you that the fry simply aren't going to benefit and may even suffer from leaving dead eggs in the tank.
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Old 05-17-2014, 08:26 PM   #3
 
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My experience is limited to Angelfish eggs. After 60 hours, the eggs that are turning white are those not fertilized. They will never hatch but will get fungus that will spread to other (good) eggs. Parents usually remove those bad eggs and often move the entire batch to a different clean spot. If you decide to raise the batch without the parents, methylene blue or hydrogen peroxide is needed to prevent fungus growth on eggs. Fish eggs don't last long. They rot quickly, long before fry are able to eat them.
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Old 05-17-2014, 08:33 PM   #4
 
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I learned long ago that the fungus you see on eggs is secondary to a bacterial issue in most cases. Treat it as such & you don't get fungus. I don't think you want fish eating bacteria that kills eggs.
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Old 05-17-2014, 09:03 PM   #5
 
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I got a snail & cleaned up the dead eggs

Just because everyone was so nice to tell me about what goes on with the non-viable eggs in the aquarium, I cleaned them up using q-tips and tipping the junk out. No babies were hurt in this process!

And I bought a snail to put in the tank to keep up the good work. He is not there yet, but in the morning I will check out the progress of the fry, they are finally getting big enough that I can see them, and see them flitting around. If I think he won't scoop them up, I will put him in there.
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Old 05-17-2014, 09:10 PM   #6
 
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Snails will eat the eggs (good and bad). Wait until you get free swimmers.
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Old 05-18-2014, 10:12 AM   #7
 
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Tolak: The idea that fungus comes after a bacterial issue seems interesting but not convincing for me.
Let me explain: I never separate eggs to artificially raise fry but I know that those who do it fear fungus first. The water they hatch eggs in is treated with antiseptics such as methylene blue or hydrogen peroxide. Both will address bacteria and fungus. Sometimes they use Acraflavine which is strictly anti-fungal. Never antibiotics, which in my opinion will take care of bacteria.
I know is off topic but I am open to discussion.
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Old 05-18-2014, 12:01 PM   #8
 
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I breed angels as well, 30 tank fishroom designed for angel breeding. HP is an antibacterial, not to be confused with an antibiotic, the same with acriflavine. I use a mix of meth blue, acriflavin, an Maroxy in my hatching tanks, Maroxy is an antibacterial chlorine based product. Much of what I do with angels was taken from various discus breeding books, sites & discussions with breeders, and applied when appropriate. I believe Jim Quarles book on breeding discus is the one that goes into detail on fungus being secondary to bacterial issues with eggs, I'll have to knock the dust of of that & give it a quick look.

Bacteria are much faster growing than fungus, and not visible to the naked eye, where fungus is and is often given blame. Antibiotics won't do a thing for this, a topical antiseptic will. Bacteria control is a huge part of running a fishroom, cleanliness is next to Godliness in many respects.

Bottom line as it applies to this topic is don't let fish eat fungused eggs if at all possible, as you are uncertain what bacteria they may contain unless you're willing to do a bit of scope work.
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Old 05-18-2014, 12:53 PM   #9
 
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I know you do, that's why I value your opinion.
My fish will eat what they want no matter what I tell them to do
For me, HP is an antiseptic (kills bacteria, fungus and viruses) not just an antibacterial (at 2ml/10 gallon).
Anyway, it's a point I will consider in the future.
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Old 05-19-2014, 10:30 AM   #10
 
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Your discussion is keeping me awake at night...

Tolak and Corina, you are not letting me sleep soundly... so my Cory babies are swimming around, though only a few times a day, I need to know if I should treat their tank with methylene blue, acriflavine, etc. Since the eggs have hatched, the unviable eggs have been removed by hand, and I put a small snail in there to help vacuum up the debris. I don't even see the snail anymore, he headed to the decor cave right after I put him in the tank. There is still a lot of junk on the bottom, will this be removed by the snail, or is it still an issue with the bacteria/fungus problem? Can I leave it for awhile, there is a philo leaf and some moss there, and I give them one dose of Hikari First Bites and a shrimp pellet? Of course, the shrimp pellet is way too big, but I am hoping it will soften and they can nibble at it. Advice?
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