Cleaning isn't too bad - I have 2 five gallon tanks with filters and a 2.5 gallon tank with a filter - two 4(?) gallon tanks without filters. Those rarely need to be cleaned.

The others are in 1.5 (?) gallon tanks which I clean weekly. I take all of the fish out and they're held in their betta cups while cleaning. Dump all of the tanks out together, clean the rocks and plants together, clean the tanks, and then reassemble them all. Quick and easy.


? is because I'm not for sure how large they are - they are plastic critter keepers.