I'm thinking of getting some lampreys, does anyone have experience in keeping these fish? If so, do they make good aquatic pets?
I want to add more to your statement. Ammocoetes (larval form) do well in aquariums but needs some detritus to survive then you may not see them for years before they became adults. Bad news: adults of lamprey species don't live long.Non-parasitic sea lampreys are fairly large and in the open a good amount of time. However, they're very difficult to maintain in aquaria due to instinctually times salinity changes. As stated above, parasitic lampreys remain unseen until they need to condition themselves for spawning. They have all the makings of winning the most boring aquarium award.
BTW, all species of lampreys are illegal to possess in your state.