OK read this quote from one of the dwarf sites I found
If you didn't know, 11 liters is about 2.9 gallons. Can this guy be serious with 30 fish in 2.9 gallons?!
Tank Tetra Glass Aquarium GB-30 (W30㎝xH20㎝xD20㎝ 11 litters)
Filter Sponge filter
Heater auto heater (60W, 15-35ºC±1ºC, setting at 27ºC)
Lighting 11W (turned on 10 hours per a day)
Substrate none
Water Condition freshwater, 27ºC pH7.0-7.2 GH8ºdH
Water Change once per 1-3 days (2 litter)
Plants a little willow moss
Fish 30 dwarf puffer fry, a few pond snails (for cleaning)
If you didn't know, 11 liters is about 2.9 gallons. Can this guy be serious with 30 fish in 2.9 gallons?!