Don't you need filter material for sea water tanks? Filter material is needed,For example, filter bags, God bricks, etc. are all filter materials.In a broader sense,Algae in the algae tank,Sand in the thick sand system,It is also filter material.
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What is the difference between primary effect, medium effect and efficient filter? The main difference is that the accuracy and speed of filtering are different,The filtered impurities are also slightly different,National Sea filter initial effect,Lieutenant Colonel,Efficient filter models and uses are different.Coarse effect: G1G2 intermediate effect: G3 G4 F5 F6 F7 F8 F9 high efficiency is H10 H11 H 12 H13 coarse effect is generally the intermediate effect of primary effect filter felt is generally Chemical Fiber High efficiency is glass fiber primary effect G1--G4 5 micron 65% 80% 90% 95% medium effect F5--F91 Micron 60% 70% 80% 90% high efficiency H10--H14 0.5 micron 95.5.95.995% 99.9995% different filter materials,
