Excuse my ignorance, is live aquaria a book or a place?Research will go a long way, LFS just wants to sell fish. Look at live aquaria in the future for a bare minimum tank size on fish, both of those fish have a minimum of 125 and 180 gallons. I have a blue hippo juvenile in my six foot tank and Im upgrading by the end of the year to at least a 220 gallon thats 8 feet for them to have more room as they get bigger.
And no not true at all. If the lfs is telling you these things find a different one, that one clearly doesnt care about the welfare of their animals and completely set you up for failure in my opinion with awful advice like that. Not trying to be mean at all, I learned my lesson with LFS and advice a couple times. Ive found two lfs stores where I made connections, they know what kind of tanks I have and advise me on fish/corals that work for my tank not just to sell them. Meeting the owners always help too, that will tell you a lot about the store.
When I go to a store I ask a question about livestock I know is a no no and if they say yeah totally will work I leave. Went to a store a week ago and asked if I can keep an adult emperor angelfish in a 70 gallon. They said yes. I walked out, cause there is no way an adult emperor angel (at 15 inches long) would even fit in a tank like that with rocks. Just my personal way of seeing which stores are good and which are not