
We have a 40 gallon hatcher tank and an AquaClear 70 filter. We use a Neocardina shrimp tank. The water flow of the AquaClear 70 filter was too strong for our needs. We installed an AquaClear 50 impeller and the reduced water consumption is just what we need. Impellers 50 and 70 are the same. The difference is that the size 50 impeller has 4 blades and the size 70 impeller has 6 blades.

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