I'm thinking of doing undergravel for the next tank im setting up. Gonna be 15 gallons. My concern is too much suction which shortens the life of the substrate. I want a good 2-3 years before having to redo the whole tank entirely instead of just a year like I have read. If longer, even better!
DIY hooking up to a canister for me seems too strong and unnecessary. Powerhead, still a bit too much right?
Whats left would be a HOB or Airstone. Anyone have any experience with these that could give suggestions or recommedations?
Soil would be ADA Aquasoil btw.