When on an outing to PetCo for water dechlorinator, I did something I knew I shouldn't have and walked by their big goldfish tank (75 or 100 gallons, not horribly overstocked). Fell in love with the pair of twin red cap orandas and have been keeping tabs each time I go back. Unfortunately, one of my two axolotls passed suddenly and I happened to need another PetCo outing. To my horror, all the goldfish from the big tank had been crammed into one of the tiny display tanks on the wall! I have now convinced my husband to let me use my axolotl's old tank to take in the two orandas. It is only a 20 gallon long, but I have a Whisper EX70 and EX30 running and plan to do weekly 50% water changes with a thorough gravel vacuuming as well as not overfeeding them. I know they should ideally be in at least 40 gallons but my husband put his foot down on that and said they will be better off in this than at PetCo. I have done plenty of research but am wondering if any of you have personal tips to help me keep these two happy and healthy when I bring them home. Here is a pic of the setup.