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What is a Tiny Tank?

Here at TinyTanks.Net we consider the definition of a Tiny Tank to be just about anything from a cup to to a 10 gallon aquarium.

What about water Quality, water changing and filtration?

Water quality is the key to keeping a successful aquarium of any size.
 
In small tanks water can pollute a lot faster than larger tanks. Fortunately the easiest way to insure water quality is frequent water changes and with a tiny tank thats a lot less work.
 
Even tiny tanks can be cycled and balanced, just remember to never overstock, never overfeed and change some water every week or so, or any time you notice stress in the fish.
 
Many tiny tanks will be fine with no filtration at all, but if you need or want filtration try some one of the air driven sponge filters or possibly one of the new extra small power filters that are made especially for small aquariums.

How many fish can I keep in my tiny tank?

The standard rule is one inch of fish to one gallon of tank capacity. But of course that is a very rough guide. For instance if you kept a 10 inch Oscar in a 10 gallon tank you would have trouble very quickly.
 
But a single 10 inch Oscar in a 100 gallon tank would be very comfortable. So considering the body mass of a 10 inch Oscar (150 cubic inches) versus the body mass of a 1 inch Guppy (.065 cubic inches) it becomes evident that a 1 gallon tiny tank can comfortably house several 1 inch Guppies, Heterandria or Pygmy Rasboras.
 
Always consider body mass. In my opinion the "one inch rule" applies to fish with a body mass like Bettas, Platies or Swordtails. If the fish you are wondering about has a body mass similar to those then you should have a good idea of how many fish to keep in a certain size tank.

What types of fish can thrive in Tiny Tanks?

Small Livebearers, Tetras, Bettas, Corydoras Catfish, Zebra Fish, Killifish, Dwarf Cichlids
 
Never keep large fish like Goldfish, Angelfish or any of the larger Cichlids in a tank smaller than 20 gallons.

What about feeding fish in a Tiny Tank?

Overfeeding!
 
Overfeeding is the number one source of problems with any aquarium, but even more so with Tiny Tanks.
 
NEVER overfeed. I recommend to never feed more than the fish will eat in 30 seconds. And always immediately clean up any uneaten food.