That red tail was lovely. We had a 60 gallon tank in a previous home which also was home to a red tail shark that grew to be 7". Rare for them to get that large. I also had a Bristle Nose Pleco that must have been 7 or 8 years old. Damn thing looked prehistoric.
We had a lot of the typical red tail sword fish, fan tail guppies, zebras and neons. I loved getting tropical Puffer fish.
I had a pair of Angels that grew quite large in that tank. Didn't know they were so aggressive at the time. They picked on the other fish so much that I had to sell them, but they had grown so large that I made good money.
Wish I had some photos of that tank, but that was almost 30 years ago. Dreamed of getting a salt water tank some day but that's a serious investment and takes special care.