Adding to what all of the above have said, if your filter is still quite new and squeaky clean, you will lose a little bit of flow as everything gets worked in and gunked up. So long term flow will usually be slightly less than setup flow anyway. Its much better to have extra flow that you can mitigate somewhat down the road than to be underpowered, easy to decrease, not so much to increase 😊
Its always scary starting up, but I think you will get through
Its always scary starting up, but I think you will get through