This spare tank would be ideal for aging change water. Having 57 gallons on hand all dechlorinated and at the proper temperature is a good thing. Can you set it on the floor behind one of your other tanks or something ? Don't let this opportunity slip through your fingers.
I'm trading the tank for the 240L I need to upgrade my cories/plecos though, I'm sorry. But thank you for the idea for future tanks!
Double or triple tier stands.
What other birds does your dad keep?
Post pictures because I like birds
He used to keep lots, parents were in the avaries and aquatics business for decades, and he had a pet Scarlet Macaw before I was born, that apparently hated my mother and would chase her around the kitchen table, lol.
I don't have pics on this computer, but now he only has the zebra and bengalese finches, a pair of budgies, and a pair of Bourkes grass parakeets ((Australian! lol). He recently rehomed the diamond doves. I have an Orange-Winged amazon indoors, they have a Hahns Macaw. When I was a teen and he had built several flights in the garden, he let me choose some birds to keep in one, and I choose grass parakeets. Splendid grass parakeets, wow, they were beautiful! Loved them. Bred them one year, then the next year lost one to Bonfire night. We'd leave the shed lights on on bonfire night and for a long before and after, but people let off fireworks for weeks, one must have been too close and spooked the birds, and you know what happens then. They shoot straight up and break their necks hitting the roof.
So that got him into the grass parakeets anyhow. He prefers the Bourkes, and they've done pretty well for him.