Large Community Fish
Others like the iridescent shark catfish probably ought to be given a pass.
Large community fish. When and how to upgrade to a larger tank if you participate in the aquarium hobby for long enough there may come a time when it becomes necessary to upgrade to a larger tank. Kept in large enough groups these fish will be gregarious amongst themselves but this boisterous behaviour will not spill over to other tankmates. The possible species are the following.
Discus are very sensitive to water parameters and quality but they are also quite beautiful. Don t mess about with numbers and opt for a shoal of a good 12 or more for a well behaved and active community fish. They can be housed with other fish of a similar size and temperament.
A large group will also look much more impressive in the aquarium and i therefore recommend getting at least a dozen of schooling fish not the mere six individuals. You can keep any of these fish in smaller tanks as juveniles. It prefers temperatures between 72 and 80 degrees and a ph of 5 5 to 7 0.
As you can see there are many large fish for freshwater aquariums commonly available in pet stores. This fish is a peaceful species but can sometimes get nervous around larger individuals. Top water the schooling fish species mentioned above will spend most of their time in the mid level of the aquarium and adding some top dwellers is therefore a good idea.
If you want a larger fish that s not so fussy blue gouramis and pearl gouramis can get fairly large. The minimum tank size for this species is a 30 gallon tank with plenty of hiding places dark substrate and low lighting. This fish can be kept in a large school it tends to inhabit the top and middle levels of the water column.
So even in a smaller tank you can have a fish that really stands out. Here is a list of peaceful community fish for your freshwater tank. Also these fish normally grow a bit larger than other community fish.
Angelfish and most other cichlids become aggressive as they mature and are not always good tankmates. You should keep a school of six to eight fish in a 10 gallon tank. The pearl gourami is a relatively large but peaceful fish and one of the most easy to keep gouramis.
For a freshwater community tank of 100 300 liter capacity a good combination would be several varieties of compatible tetra fish and barbs. Keeping large species of freshwater fish in a community tank can be challenging but with proper planning you can be successful. Some of them like angelfish make good fish for community settings.