How many Invertebrates?
This depends on what biOrb aquarium you own. We would suggest you consider 6 Hermit Crabs and a cleaner shrimp for a biOrb 60L, these cleanup crew members are great for ensuring the tank stays clean and the water quality remains high. You should consider adding Hermit crabs from the second week.You may also want to consider adding a small amount (one handful) of Marine Algae (Caulerpa).
