I have a 30 gallon aquarium. I had my airstone in a cabin decoration with only 2 holes to let bubbles out. I bought a coral with a lot of holes coming out and it seems to affect the fish, especially my anglefish and black moor. I unplugged it, are there any tricks to making the airflow less intense? I like how it looks with the bubbles but don't want the current tearing up my fish. Thank you so much!