My First Tank

Introducing fishes into the tank 

You’ve kept your tank running for 2 weeks and now you are ready to introduce the fishes. When you buy the fishes from the fish shop, they packed the fishes in plastic bags. Float this bag in the tank for about 30 minutes to 1 hour, afterwhich you open the bag and fill the bag with your tank water by about half the volume of the original bag. Float again for about 15 mins. Add more tank water to the bag after 15 mins.

Some people prefer not tip the bag over and release the fish, whilst others like myself prefer to do just that. When water from the shop is poured into your tank, diseases and parasites may also be introduced into your tank. 

If you have the space and patience, get a quarantine tank. Place your newly bought fish into the tank after the steps above. Observe and treat for diseases, if necessary. If your fish displays no illness, introduce to the main tank.