Your first aquarium starts before the fish.
Make the first decisions in the right order: the fish you can care for, the aquarium they need, then a working environment ready to receive them.
Choose a direction
Compare freshwater and marine keeping, including the work after setup.
Make a fish shortlist
Research adult size, companions, water needs and feeding before buying.
Prepare their home
Plan the equipment, water and maintenance access.
Establish the filter
Understand cycling and the evidence needed before stocking.