Well it's about harvest time... leaves are falling from the trees, & we are starting to come out of our drought... rain is a good thing... on purpose placement, under the eves of my garage, the rain runs off the roof, filling to the overflow the Tilapia tanks & filter reservoir... more rain over flow, means free water changes... fish were active this morning, & water a little clearer than normal, thanks to the rains...
I think a good part of the suppliers "grading" system, is early sexing... a random sample netted out of my tanks a few weeks ago shows a higher than normal percentage of female fish, which run smaller than the males... males right now are running 8 to 9 inches long... females are 6 to 7 inches long... we'll begin harvesting next week, on Saturday, & there should be right around 100 harvested, minus the 4 to 6 I pull aside for breeding...
I found a problem with the falling leaves, enough have been getting into the system, even though 2 out of 3 tanks are covered ( the hydroponic plant tank is open on the top ) my pump was not pumping water this morning, when I fed fish, before heading off to work... I didn't have much time, but I pulled the pump, & the bottom was full of leaves... pulled them out, & slid the pump back in, but still wouldn't pump... I would suspect my hose from the pump to the highest tank, is plugged with leaves... the fish will be fine while I'm at work, with the influx of new rain water, & I'll have to look at it more in depth when I get home tonight... everything is pretty serviceable, so it should be fine... may have to take my air compressor to blow a plug out of the hose???
so far I still have one very large Tilapia living in the plant hydroponic tank ( suspect he ate all my duckweed, to get so big )( thinking he jumped out, before I covered the tanks & landed in the tank next to it, that was full of duckweed, earlier this summer ) & I have been seeing one of the Bichirs quite often lately, both the Tilapia, & the Bichir are easy 10 inches long right now... there is supposed to be 3 Bichirs in that tank, but I only ever see one at a time... & never saw any dead, so unless a bigger Bichir would eat a smaller Bichir, I probably still have 3 in there... they were all put in at 3 inches... so it's quite possible that I'm seeing different fish, 1 at a time, & they are all close to the same size??? the one (s) I'm seeing are eating pellets, that I'm putting in for the single Tilapia, now that the mosquito fish have all been consumed... which will make things easier next week, when they are moved into aquariums in the house for the winter...