Hello friends
Yesterday I put Coral Essentials Black Label (4 drops of each) into my 620 liter aquarium for the first time, and it immediately formed a strange film of algae. What could that be?
Aquarium is 10 months old and has 620 liters
thank you
Yesterday I put Coral Essentials Black Label (4 drops of each) into my 620 liter aquarium for the first time, and it immediately formed a strange film of algae. What could that be?
Aquarium is 10 months old and has 620 liters
thank you

