Sudipto
Member
Due to certain unavoidable circumstances I had to set up a new planted tank (2x1x1) with an Eheim Classic 2217 about three months ago. As you can understand it's an overkill and the flow is a lot more than my fish can handle. In fact I cannot keep tetras because they may not be able to manage so much flow. I modulate one of the outflow taps to reduce flow just a bit but even that is not enough. Read somewhere that you should not tweak with the inlet's flow rate at all and I have left it untouched and the valves are fully open there. Now, I believe if the outflow rate is reduced through valve/tap modulation it puts pressure on the motor and heating up issues crop up leading to damage of the pump. My question is how much is too much? Can I reduce the flow rate to half of what it is? Will it damage the pump? I will have to carry this filter on this tank for a couple of months more. In a couple of months I will be able to switch over to a 2215. Any solution till then?