What micron filter sock is best for a reef tank?

A 100 to 200 micron sock suits most reef tanks. Choose 100 micron for clearer water with more frequent changes, or 200 micron for longer between changes in a heavily stocked sump.

Do you need a filter sock on a reef tank?

No, a filter sock is not essential, but it removes visible detritus before it breaks down and adds nutrients to the water. Many reef keepers use one alongside a protein skimmer, because the two do different jobs.

Can you wash and reuse a reef tank filter sock?

Nylon mesh socks can be rinsed and reused, while felt socks are treated as consumables and replaced. Rinse a mesh sock in tap or RO water, let it dry, and replace it once it frays or no longer rinses clean.

Should I choose a 4 inch or 7 inch ring filter sock?

Choose the ring size that matches your sump's sock holder, because the sock must sit snugly in the holder to stop water bypassing it. Both 4 inch and 7 inch ring socks are available at filtersock.co.uk. Measure the ring diameter before ordering.

Can I get a filter sock made to a custom size for my sump?

Yes, custom sizes and micron ratings that are not in stock are made to order. Filtersock.co.uk quotes custom requests within one working day, and you can get in touch via the contact page.

Filter socks and bags, dispatched from Leeds

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Aqua Filter Socks

Best Filter Socks for Reef Tanks UK: 5 Options Ranked
The best filter sock for most UK reef tanks is a washable nylon mesh ring sock rated at 100 micron, such as the Aqua Filter Socks 100 micron…