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Question:

Homemade fish filter

Homemade fish filter

Answer:

filter cotton 1.5 yuan, flower and bird market, JS are sold. (but a demon on the market is 8-10 yuan, to DIY fun or convenient to see you)
The most simple and practical than homemade water fairy, cost: mineral water, empty bottles 0 yuan, coral sand and ceramic ring 4 yuan,
the bottle hole, when the water inlet, cut the bottle cap, do not throw.

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