ECCO_
Fish Crazy
Also, Im only using one, but is there a limit on how many aerating ornaments you can use in a tank?...
to my knowledge it's only really limited by how much water movement you want in a tank. Air pumps can be spliced into multiple ornaments so you can try out all of them and remove your least favorite until you are satisfied with the water movement and surface agitation. Also surface agitation normally cause the release of co2 and the absorption of oxygen to be more rapid. Therefore more surface agitation means less co2 which means that your plants will not be as happy. Just something to consider.