The safest way to add fish would be to first add ammonia to the aquarium. Then, add some good quality live bacteria and test daily until the ammonia and nitrite levels are at zero before adding the fish.
Follow the instructions on the bottles to make sure you don’t add too much or too little in the aquarium.
Recommended fish are guppies, platies, small tetras, habrosus corydoras (or other small cories), mollies, and small barbs. The store workers can help answer your questions and help you choose appropriate fish for beginners or experts! Overcrowding your tank might make it harder to maintain safe ammonia levels and to keep everything in order.
