Somewhere, I think in the archives here I read an article about buying 2 barrels, cutting one in half to make to worm composting bins, and the other barrel was used as a catfish grow tank for 40 to 50 fingerling channel catfish. 1.5 to 2 lb weight per fish was attained in one season feeding them worms. 40 to 50 catfish seemed to be thinking a little small to me, and I decided to kick it up a notch or two. . Last fall I decided to make this pipe dream a reality. . As much as I would like to feed the catfish for free from worms grown in my own worm growing beds, that is on hold for now, but not forgotten. I will be feeding my fish ... floating catfish chow pellets for now. . I have a large wrap around porch on my new house which is still under construction by a one man band who hardly plays one instrument. . On my Southwest corner of the porches I set up a 55 gallon trickle down bio filter, and 3 water tanks (100 gallons each), set tri level so that the bio filter dumps into tank one, which dumps into tank two, which dumps into tank 3. A 790 gallon per hour commercial grade circulation pump pipes the water from the low point of tank 3 up to the bio filter for the completion of the cycle. There are a number of other inter connections between the tanks and bio filter as well I won't go into at this time. . I also have a aeriation air pump and distribution system that is capable of supplying 80 cubic liters of air per minute (26/27 cl per tank). commercial grade pump (yes it is oversized, ... my mistake, but will live with it til this pump dies if it ever does, and scale down a little). . March 24th I was sitting with my mini truck and utility trailer, and 4th 100 gallon water tank at the feed store 15 miles from my house waiting on fish. . First off, I was supposed to be getting 300 channel catfish 4 to 6 inches in length. The fish looked small. As it turns out they were. All were 3 to 4 inches in length. 4 out of 5 were under 4 inches. . Second, although the fingerlings were small, they gave me a long count of about 130 per bag that was supposed to be 100. . Third, due to the fish being small, I made mistakes. The water pickup cage with 1/2 inch by one inch mesh was too big. Seven of those little buggers were able to squirm into that cage clogging the flow to the pump. I found this out just before going to bed late the night of the 24th. When I went out there to shut off the lights, I noticed by the sound that the pump was straining. I immediately shut off the water pump, found the problem, turned on the aeriation air pump, and removed the pickup cage because I could see a few fish still alive in the cage. I failed to turn closed the ball valve at the tank 3 discharge to the circulation pump. I released back to tank 3, 2 live catfish and found 2 more dead ones on top of tanks 1 and 2 above the screen cover (1/2 by 1 inch mesh). Off to bed I went. . Next morning I found my tank 3 tiny catfish had learned to swim into the clear 1 inch circulation tubing, but were unable to turn around anywhere and thus many had stacked up here and there totally clogging the tubing. . The ball valve was closed and all remaining tank 3 fish still alive were evenly distributed to tanks 1 and 2. . It was quite a disappointing pain in the wallet and required a good deal of time to disassemble, clear and reassemble. Another 58 fish were dead. . I corrected the problem with the circulation pickup cage (I installed filter medium - 3M green scrubby pads in the pickup cage and the tank drain fittings for tanks 1 and 2 and 3). . I have been feeding the little buggers a minimum amount of floating catfish chow daily since the second day with little or no interest by them. . wooo hoooo, This afternoon 2 April, when I fed them the little buggers didn't exactly make the surface boil, but it was quite obvious they knew it was food, and they liked it. I gave them a double ration and watched them eat for a while, then I left them to it with a smile on my face. . In the near future I will try to get some pictures up on this. .... be patient, I am barely computer literate doing this. . One thing I am fairly sure of..... there is going to be a late fall early winter fish fry here, and I will have probably have fish to can as well.