Fry in filter,

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joedtr

Jack Dempsey
MFK Member
Dec 29, 2007
41
0
36
West Milton, Ohio
I had detailed in an earlier post how my young jags had recently spawned in spite of the fact that are still very young. Because they had corralled all the other occupants of the tank to one end defending their fry I decided to move them about a month ago. I was only able to collect about six of the fry at the time and the others disappeared into my river rock substrate. I assumed they would be eaten by the tanks other occupants. At the same time I took the sponge cover off my canister filter intake. Well low and behold in the process of cleaning my canister I discovered 15 of the fry have been living in the canister since the move. They are smaller than their siblings but appear to be healthy. The filter is a modified Odyssea 700 that I have cut down the diameter of the sponge to provide more surface area. The 1/2 inch around the outside of the sponge was apparently enough swimming area to sustain the fry. I had a danio survive in a sump before, but would not have believed something could survive in a canister.
 
When I was raising Convect fry as feeders I would always find some in the filter. You could use a mesh filter bag over the intake or a piece of foam wraped around the intake to prevent it. I had so many I didn't really care. They can surprisingly survive pretty long in a filter.
 
I have had cory cat fry in my canister filter. One of them was actually pretty big. I always check it now before I dump out the water when cleaning.
 
I've had some fry in the sump before.

And a danio living in the U tube that goes from the overflow box to the sump for several hours. That was the craziest. He had to constantly swim against the current to avoid getting sucked in... until he gave up.
 
Throughout the years I have found fry from multiple pairs of species in sumps and filters. It's always a surprise to me! Fish, even while young, can be very resilient.
 
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