I attached them to new hoses that were the right size for this and my filter. I have a cf60 potfin. So not the best filter. This filter, with its original inlet and outlet, barely gave my 40 gallons any noticeable flow. As soon as I attached these water lilies I immediately saw a huge difference. It is clear that they are very beautiful. They are also well constructed to better conform to the back or rim of the tank. My water level is a little low in the photos I've posted, I generally prefer to keep it maybe an inch or so higher. I only mention this to point out that the design of the intake is such that part of the opening is still exposed to the air. Which is pretty good. In general the flow is nice, I can see all the stems and leaves moving on all my plants. The run has already received some of the free food plants that have been in my tank for a few days. Cleaning seems easy. I will definitely buy my next tanks again
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