REVIEW: TMC V2Skim Compact Surface Skimmer

If you are one of the many people who start out with a simple and perhaps relatively small reef, chances are you may decide that a sump isn’t something you want to dabble with until you have more experience.

Well, despite having certain drawbacks, sumps do offer some advantages, and one of these is the surface skimming that weirs and overflows provide. Without this process, many sumpless tanks accumulate an unsightly ‘biofilm’ on the water surface which reduces light penetration, interferes with gaseous exchange and can really ruin the look of a system.

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