There are science teachers (and their tanks), and then, there are science teachers and their tanks.
The point is, for every (many) bad teacher's aquarium, there is one or two who do a better, or even a good job.
Four years ago, I adopted 3 very adult silver dollars fish, Metynnis maculatus, from my wife's colleague's science teacher aquarium at her school. The fish were originally purchased (and there were records of this) by a former science teacher, ~15 years before. The original (good) science teacher raised them from juvies through young adulthood, in a 75 gal tank. After that teacher's retirement, the new teacher inherited the tank and probably did not do any water changes (or so) for the next ~5 years, until I inherited them. The fish came with a bad case of popeye, and white discolorations on the sides (photos).
After 4 years under my care, the fish are estimated to be at least 24 years old (perhaps slightly more, such as 1-2 more years), and seem to be in very good health. I expect them to live for additional decades.
Photos-
- First composition shows two fish, a female (upper left), and several views of one of the males, which was in particularly bad shape, shortly after arriving to my home in 2017.
- Second composition is the same male fish as above, on May 2019 (2 years later), looking much, more healthier.
- Last picture is a group shot taken 2020 of the 3 fish (all 3 seen at far right, 2 males and one female), together with other silver dollars, M. lippincotianus. The group of 8 fish are about to move to a newer, larger, also planted tank in a couple of months.
Both of the teachers, the old and the new, have come to my house and seen the fish in their better quarters.
It is possible to show teachers how to do it right!
Cheers!
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