| 21. | Skuas are related to gulls, waders, auks, and skimmers.
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| 22. | The PIN harvesting can be performed with a chip skimmer.
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| 23. | Smaller protein skimmers are also used for filtration of home saltwater aquariums.
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| 24. | This was done with the placement of skimmers and booms.
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| 25. | A sump can also be found heaters and protein skimmers.
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| 26. | The eggs are collected with a surface skimmer using mesh screen bags.
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| 27. | Gulls, skimmers, and terns form their own clade.
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| 28. | There are two types of outlets : surface skimmers and the main drain.
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| 29. | After skimming remove and clean all the skimmer baskets.
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| 30. | Remove to a colander using a large skimmer or sieve as a ladle.
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