When stocking a nano aquarium, it’s very tempting to set it all up and cram it full of your excess frags and other livestock from your other aquarium(s). But as with any new setup, you must be patient with a tiny tank, probably even more so than with a larger aquarium. Small tanks experience larger fluctuations in greater frequency than their larger counterparts. Because of this, it’s crucial to get a handle on water parameters and a solid routine before going crazy and stocking the aquarium to the rim. Keep in mind that these aquariums also have poorer filtration systems than larger aquariums, typically, and rely more on precise water chemistry than anything.