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Copepods from the quarry?


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#1 Fleendar the Magnificent

Fleendar the Magnificent
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  • Ohio

Posted 30 March 2019 - 02:35 PM

I always get my tank water from the quarry down by the river and I picked up two-5 gallon buckets yesterday. When I did a partial water change in the tank with my pumpkinseed I discovered a million and 1 of these tiny white critters with 2 micro thin legs at their head. They haven't been there all winter until now as it warms up. They're a micron bigger than live baby brine shrimp. Are these copepods? I am assuming that they are and that natural foods are the best.

Sorry for the poor photo, they do not stand still, but the fish seem to really like them.

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#2 swampfish

swampfish
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Posted 30 March 2019 - 04:53 PM

From their shape, they appear to be Cyclops, a common genus freshwater copepods that make great live fish food. 

 

Every year when I turn over my stock tanks and fill them, I get "blooms" of Daphnia., a genus of cladoceran. Another great live fish food.

 

Both copepods and cladocerans are groups of microcrustaceans. They tend to more numerous in colder water in the spring.

 

Phil Nixon



#3 Matt DeLaVega

Matt DeLaVega
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Posted 30 March 2019 - 05:42 PM

I find keeping live food cultures to be every bit as rewarding as keeping the intended consumers.


The member formerly known as Skipjack


#4 gerald

gerald
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  • Wake Forest, North Carolina

Posted 31 March 2019 - 10:50 AM

Or maybe Diaptomus, another copepod that swarms in mid-water.  I find Cyclops to be more assocaited with surfaces; not so much in mid-water.


Gerald Pottern
-----------------------
Hangin' on the Neuse
"Taxonomy is the diaper used to organize the mess of evolution into discrete packages" - M.Sandel


#5 Fleendar the Magnificent

Fleendar the Magnificent
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  • Ohio

Posted 31 March 2019 - 11:15 AM

These are surface critters. It's a stone quarry that I get them from and the water is about 4 feet deep where I bucket from. Looking closely at them I see what looks like egg sacs on either side of the tail. I was thinking Cyclops but wasn't sure. Massive bloom and the water is kind of murky because there's so many. Kept the punky occupied all night.
Wish I had a way to breed them and keep the food source going.




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