I'm a fairly new fish keeper compared to you guys. I've started 2014 and I've been going since. Of course we had the generic fish tank that every home has at one point, mostly with inappropriately housed fish and the most common plecos that you can fit (you now the more you have the cleaner your tank will be). No regard to temperature what so ever and the only thing that you would call a "water change" that we did is that we took all the inhabitants out and put them in a bucket while scooping the water with pitchers and scrubbing the glass, and we did that whenever the tank got "dirty". I was a kid at that time so I wasn't involved much so my parents were the one doing it. The fish were not lasting very much so they decided to ditch the idea, but gladly they didn't throw the equipment. Because after X number of years I really got into fishkeeping, mainly because I enjoyed watching cichlidman09 on YT (he's a cool dude and the one who pulled me into fishkeeping). And I'm really great full for the wealth of information that is easily accessible on any platform. I can't imagine the amount of frustration that I avoided by listening to your guys advice on this forum or any other platform and I'm really thankful for that.