See this thread for images. Basically you connect a powered or submersible pump to the sponge instead of an airline.Conner I'm not exactly sure what you mean by driving them with submersible pumps without having air pumps or surface disturbance. Elaborate please
It was motor noise. I had a jebao 8000 that I replaced it with. I would still like to be able to quiet that pump down for future usesVibration or motor noise?
Can you post a pic of your "goldfish tub"? Sounds like what I have in mind for the spring. Was gonna just use a 55 on the deck but the fish are too big. Tia.You can use this Tetra one and just make the discharge below the water surface. If you do this you won't get the degassing and aeration, but that may not be a big deal depending on density and surface area. I use it for a goldfish tub with the dome attachment and it works great. I feel like can see fine though everyone has their own opinion on that.
Filtration Fountain Kit | Tetra® (tetra-fish.com)