TheAdmiral Posted August 31, 2021 Share Posted August 31, 2021 I have 2 20g longs each with a matten filter, running off a single Tetra 77850 (60g-100g rated version) via a 4 way valve. I keep having weird flow issues. I'll have them dialed in great, then the next morning, flow on one has greatly reduced, culprit being crappy flow coming from the no-clog air stone. So I loosen the airstone, flow great again, then maybe a few days later, same thing. Loosen the air stone more, play with the air valves, everything dialed in again. Then in a few days, similar issues, maybe from the same tank, maybe from the other. I just can't figure out why they don't stay dialed in. I'm guessing it has something to do with air following the path of least resistance so any difference in caused by different air hose lengths, adjustment of the airstone, depth of the water, etc will result in differences in pressure. I guess running multiple items off a single outlet is futile? It's maddening. Any thoughts? Link to comment Share on other sites More sharing options...
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