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Choose the right fish for your aquarium: they should reflect a natural harmony with plants and decoration
Bear in mind when introducing new fish: Any change of water and environment constitutes a stress situation for the fish and can activate pathogenic agents. If at all possible a separate quarantine tank should be kept in which the fish can be observed and, if necessary, treated prior to moving them into the community aquarium. If at any time a treatment against fish ailments directly in the aquarium becomes necessary you have to remember:
Medication products cannot distinguish between harmfull and useful micro-organisms and will very often damage or even destroy the vital reducing bacteria in the aquarium. This can cause a serious set-back, particularly during the running-in period of the first 2 months. We recommend, therefore, after treatment is completed:
- A 50% water change as soon as possible
- Repeat 50% water change 3-4 days later
- After that resume normal routine of 25% water change. Don't forget fertilizers and water treatments.
This will encourage the micro-organisms to regenerate and to re-establish the "biological balance" as quickly as possible. If the plants have taken too much of a knock the aquarium has to be "run in" again.
Shoaling fish
The most sought-after fish species are the ones which swim in a close shoal. However, whether they will shoal mainly depends on: the size of tank.
Only very few species will shoal in an aquarium smaller than 120x50x50 cm as they need a certain amount of space in which they can actually "move along" as a shoal.
As some fish prefer to swim just below the surface and others tend to occupy the middle or the lower waters it makes sense to take this into consideration when choosing your fish community.
Surface fish
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Aplocheilus blockii u.a.
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Green pacha
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Carnegiella strigata
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Marbled hatchetfish
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Gasteropelecus maculatus
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Spotted hatchetfish
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Dermogenys pusilus
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Half-beak
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Middle water, upper region
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Aphyosemion
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Killifish
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Aplocheilus lineatus
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Pancha species
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Arnoldichthys spilopterus
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Red-eyed characin
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Barbus tetrazona
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Tiger barb
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Bedotia greayi
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Madagascar rainbow fish
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Brycinus longipinnis
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Long-finned characin
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Danio
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Danio
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Gymnocorymbus ternetzi
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Black tetra
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Hemigrammupetersius caud.
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Yellow Congo tetra
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Melanotaenia
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Rainbow fish
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Moenkhausia sanctaefilomenae
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Red-eyed tetra
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Nannobrycon
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All pencilfish
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Rasbora caudimaculata
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Red scissors-tail
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Rasbora pauciperforata
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Red striped rasbora
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Rasbora trilineata
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Scissors-tail
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Thayeria boehlkei
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Boehlke's penguin fish
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Thayeria obliqua
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Penguin fish
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Telmatnerina ladigesi
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Celebes sailfish
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Xiphophorus maculatus
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Platy
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Middle water, lower region
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Barbus barilioides
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Orange barb
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Barbus cumingi
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Cuming's barb
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Barbus nigrofasciatus
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Black ruby
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Barbus semifassciolatus
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Green barb
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Cheirodon axelrodi
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Cardinal tetra
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Hasemania nana
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Silver-tipped tetra
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Hemigrammus erythrozonus
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Glowlight tetra
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Hemigrammus ocellifer
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Beacon fish
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Hemigrammus pulcher
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Pretty tetra
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Hemigrammus rhodostomus
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Rummy-nosed tetra
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Hemigrammus rodwayi
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Gold tetra
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Hyphessobrycon erythrostigma
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Bleeding heart tetra
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Hyphessobrycon herbertaxelrodi
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Black neon
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Hyphessobrycon heterorhabdus
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Flag tetra
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Hyphessobrycon socolofi
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Lesser bleeding heart
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Megalamphodus
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Phantom tetra
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Petitella georgiae
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False rummy-nose
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Phenacogrammus interruptus
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Blue Congo tetra
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Rasbora heteromorpha + hengeli
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Harlequin fish
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Rasbora vaterifloris
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Peraly rasbora
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Bottom fish
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Aequidens curviceps
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Flag cichlid
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Apistogramma
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Dwarf cichlid
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Barbus oligolepis
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Island barb
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Barbus titeya
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Cherry barb
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Corydoras
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many Corydoras species
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Crenicara
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Crenicara cichlid
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Nannacara anomala
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Golden-eyed dwarf cichlid
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Papiliochromis ramirezi
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Ramirezi dwarf cichlid
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Pelvicachromis spec.
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Kribensis
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