I think since you already seem to be attached to your little pleco buddy & seem to want to keep the little guy, & since you did say that you really are loving aquarium keeping & want to continue, how about making the nano your little boy's aquarium & you invest in a 30 or 35 gal
. For yourself ? Then you could keep your pleco & have oodles of fun researching & choosing new fish to keep your pleco company & give yourself a wonderful gift too. I am 51 years old & been keeping aquariums on my own since I was 10. There is so much fun & so many interesting things to aquarium kerping. Like decor, Landscaping, breeding, filtration, sand vs gravel, choosing the cool fish you want. Wait, you'll see, you to will end up with more than one tank. Just like I did when I really caught fish fever. Lol. I now have a 35 gal
. Tall, a 55gal., & a 125 gal
. And as soon as my husband & I build our new house next year, we are adding a new 300 gal
. I cant wait! You might as well wrap your mind around it, your hooked just like the rest of us, lol. Let me know how it all works out for you & baby. Love & best fishes, The Discus Queen.