Jul 23, 2020 #1 L Love2watchfish Aquarium Advice Apprentice Joined Dec 12, 2015 Messages 17 Are they needed in aquariums or just a preference. How do they compare to air pumps when it comes to sand substrate? Do Oscars like them (pumps)?
Are they needed in aquariums or just a preference. How do they compare to air pumps when it comes to sand substrate? Do Oscars like them (pumps)?