Growing Daphnia in aquarium for food

Munchausen

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I want to cultures of copepods and daphnia to feed to larvae, but I'm concerned too many will get sucked up into the filters. Will this happen or is there a way to filer the water without killing all of the daphnia?
 

axowattyl

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I've been messing around with shrimp a bit, experimenting with their viability as a clean up crew and food source (in their own tank at this stage).

I've found a piece of stocking over the filter intake works a treat, but you do need to clean it time to time.

The thing with daphnia is that they like really nasty green water, which might lead to really quick blockages of your intake.

We have absolutely BILLIONS of the things in our farm dam, but it's dried up and empty with 1m of the nastiest water you've ever seen in the bottom and cow poo/blue green algae everywhere.

Apparently this is what they like....must be given how many there are.

Problem is I'm not game to scoop them out of that kind of water and feed them to my axies.
 

Fishfur

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Given my experience, I would not use any filter at all. Daphnia need some circulation so their food will remain suspended in the water, but not a lot. Bigger bubbles are better than tiny ones, which might get caught under their shells and strand them at the surface where they'll starve.

Instead of filtration you just do water changes. Put a piece of very fine mesh, like panty hose, over the siphon tube, suck out a quarter of the water twice a week. Shake off any critters stuck to the screen on the siphon, then refill gently with new conditioned water.

Don't overfeed. Despite the fact they seem to thrive in algae filled ponds, tanks are an artificial environment. In a tank, too much food can literally use up the oxygen too fast and they'll die. Only enough food to last them a few days, no more. Once it is gone, add more. As the culture grows, more food at one time, but still be careful.

Baker's yeast dissolved in water first is a useful food, but remember, daphnia themselves have little food value. It is what they eat that gives them value, so feeding algae means they have a lot more to offer the prey animals they're fed too.

I've run across some great links on raising daphnia, moina and dero worms, if anyone wants them, just ask, I'll post them.
 
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    Bloodworms are not a great sole diet for small axolotl or bigger ones, though many people do use them exclusively. Your better off using eartworms which are considered a complete diet
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    Hey guys! I’m having an issue with my filter and was hoping for some suggestions. I use an aqua clear 20-50 gallon filter for my 20 gallon axolotl tank. It has worked great since I got it back in December! Recently though, I’ve noticed the flow of the water has turned into more of an intense trickle than a constant flow (if that makes any sense?) I thought it may be something was stuck in the filter or maybe the sponge needed to be swished around in tank water, so I did both of these and it still trickles. It’s a very strong trickle, so the tank is still getting good filtration. It is just so loud and I was wondering if this has happened to anyone else and if there’s a way to fix it?
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    Hmm, I don't know much about those filters, and I'm having trouble picturing what you mean, but could it be simply that your filtration media is arranged in a different way? Or maybe you're losing water content to evaporation? Just throwing out ideas. 😁 Again, I don't really know much about that kind of filter
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    Since it was looking better (not flared out so I couldn't tell if it was still fuzzy) I put him back in plain, dechlorinated water. He gets daily water changes, always dechlorinated. The tea I used was plain black tea. The brand was Lipton and it came in a large box, purchased from the grocery store. Does anybody know what this could be? I found a couple old threads with a similar issue, but nobody ever replied to them. I can post a thread if you'd like some pictures, but they aren't very good. My camera was having trouble focusing and my axolotl kept moving.
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    Ok ill on Facebook too. Thanks. I've heard tea or salt and also neosporin. Do axolots breathe and absorb through their skin like sallies? Thats what I'm afraid of. Because I don't want them to absorb salt if that will hurt them. Anyways, I'll look at Facebook too
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