What are the disadvantages of artificial reefs?

Artificial reefs can lead to ecological imbalances by attracting certain species while displacing others, potentially harming local biodiversity. They may also create a false sense of security for fisheries, leading to overfishing in surrounding areas. Additionally, poorly designed or constructed artificial reefs can degrade over time, posing hazards to navigation and marine life. Finally, they can divert attention from the need for sustainable management of natural reef ecosystems.