“In the previous lesson, we defined astronomically Sirius as the brightest star of Canis Major. Tomorrow we will have an unofficial day off while today, Choky, we will be trained on fish! We feed these beings, they excrete, we cultivate them, they clean us, we gather the greens, recycling, no need for anything else!

Their family is called Sciaenidae. They live in warm, salty waters like ours, and their characteristic is that they have a bladder resembling a labyrinth that stretches up to 2 meters! Thus, they gain the ability to produce sounds, as if playing drums. With the nickname “tambourine”, they may have formed the basis of the myth of the murderous sirens of Homer’s Odyssey, an ancient poet of Anatolia!

The main species are: Cynoscion the flexible, like you Choky, and Jonius Hololepidotus the tough, like your friend Rocky, remember?
Sciaena Aquila is the species with the most beauty. It shines down there in the depths it frequents, but down there also frequent some other very noisy ones.
Sciaenops and Ocellata, weighing up to 25 kilograms, and Menticirrhus, who does not have a labyrinthine bladder, I wonder what he wants with all of them and what other stories they are setting up anyway!
Anyway my little helper, let’s summarize. In total, we have so many… fish, living in so many… tanks, each of… liters of water and needing so many… kilograms of food per so many… hours. So many… times we pump the water filled with NH3, NH4+, NO2-, NO3- into a tank of so many… liters along with so many… kilograms of red worms to break down the solids, so that with the ready-made organic fertilizer they provide us, we flood the containers with so many… cultivated roots to feed.
Those, biologically, filter the water clean, which before replenishing the water missing from the fish tanks, is rejuvenated in so many… tanks of so many… liters with so many… kilograms of active microorganisms inside them.
The waterproof containers, drain rapidly sucking up to the depths of the roots the necessary O2 and the circuit restarts! With the system as it is, ninety-five percent water economy is achieved and production is increased tenfold!
Analyze and categorize! Store and reassemble! Give your best self, helper, and you will be rewarded! For starters, at least, with a song for a break!
We’ll play in turns, first the beloved and happy note D and then the hated and saddened note E. And then again and then again and again! Because repetition is what will make you a good student, don’t forget! Let’s go Chk!”

“Catfishit!, a poem by Ice Atan.

The whole place filled with catfishit!
Red worms munch the ones who are thick!

A little rabbit eating all the food,
lettuce green, lettuce coarse.
Rooting in the rocks, it eats too!
A worm is born in the underbelly
of the rabbit grandpa, departed from old age.
A rabbit dies on the land.

Yet the fish, they eat just fine!
And so the fish, catfishit!
And so the worms, munch the thick ones!
And so the lettuces eat just fine!
And so the rabbits eat just fine!
And then the rabbits die on the land!
And so the worms are born in the belly!
And so the fish eat just fine! And so the fish, catfishit!”