{"product_id":"reefsweep-medium-uv-c-sand-bed-treatment-tool","title":"ReefSweep Medium – UV-C Sand-Bed Treatment Tool","description":"\u003ch2\u003eTarget dinoflagellates where they grow\u003c\/h2\u003e\n\u003cp\u003eSand-dwelling dinoflagellates can be difficult to reach with a conventional in-line UV sterilizer. The \u003cstrong\u003eReefSweep Medium\u003c\/strong\u003e brings a \u003cstrong\u003e7W UV-C module\u003c\/strong\u003e close to visibly affected areas of the sand bed in a marine aquarium. It is designed for use in \u003cstrong\u003esmall to medium reef tanks\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePlace the treatment head on or just above the affected area, with its opening facing the sand. The enclosed head helps direct the UV-C light towards the selected spot.\u003c\/p\u003e\n\u003cp\u003eUse the ReefSweep Medium as part of a broader approach to identifying dinoflagellates and addressing the conditions behind an outbreak. Results can differ between species and aquariums.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the ReefSweep Medium?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargeted sand-bed treatment:\u003c\/strong\u003e positions UV-C close to visibly affected areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7W UV-C module:\u003c\/strong\u003e supplied with an inline on\/off switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular handle:\u003c\/strong\u003e two extension tubes, one connector and a separate handle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for small to medium tanks:\u003c\/strong\u003e approximately 60 cm tall when fully assembled.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 60 cm measurement is the \u003cstrong\u003etotal assembled height\u003c\/strong\u003e, including the treatment head and handle. It is not a maximum water-depth rating: leave enough room to grip and move the handle above the aquarium rim. The switch must remain outside the aquarium.\u003c\/p\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eAssemble the treatment head, extension tubes, connector and handle.\u003c\/li\u003e\n\u003cli\u003ePosition the head on or just above a visibly affected area, with the opening facing the sand.\u003c\/li\u003e\n\u003cli\u003eEnsure that the entire treatment head is submerged before switching on the UV-C module. Keep the switch and electrical connections dry and outside the aquarium.\u003c\/li\u003e\n\u003cli\u003eTreat the selected area in accordance with the instructions supplied with the UV-C module.\u003c\/li\u003e\n\u003cli\u003eSwitch off and unplug the module before lifting the treatment head out of the water.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eReducing the flow from your circulation pumps temporarily may make it easier to hold the head over one spot.\u003c\/p\u003e\n\u003ch3\u003eWhy can dinoflagellates take over?\u003c\/h3\u003e\n\u003cp\u003eDinoflagellates can gain ground when aquarium conditions favour them and other micro-organisms lose their foothold. Prolonged very low or undetectable nitrate and phosphate, a loss of biodiversity or sudden changes in maintenance may play a part. An outbreak is also possible when nitrate and phosphate are measurable; test values alone do not reveal the cause.\u003c\/p\u003e\n\u003ch3\u003eSupporting the aquarium after treatment\u003c\/h3\u003e\n\u003cp\u003eUV-C treats a selected area, but long-term management also means looking after the rest of the aquarium. Some reef keepers add a suitable bacterial culture after treatment and introduce copepods to support microfauna. Both are optional additions, not a guaranteed cure or a required dose after every session. Follow the bacterial product's directions, including any instructions about switching off UV equipment, and monitor nitrate and phosphate. Copepods need suitable habitat and food to establish.\u003c\/p\u003e\n\u003ch3\u003eWhat's included?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × ReefSweep Medium treatment head\u003c\/li\u003e\n\u003cli\u003e1 × 7W UV-C module with inline on\/off switch\u003c\/li\u003e\n\u003cli\u003e2 × extension tubes\u003c\/li\u003e\n\u003cli\u003e1 × connector\u003c\/li\u003e\n\u003cli\u003e1 × handle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant safety information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo not use in acrylic aquariums (Plexiglas).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV-C light can damage eyes and skin.\u003c\/strong\u003e Only switch on the module when correctly installed, with the treatment head fully submerged and facing the sand. Never look directly at the light or its reflection. Do not expose fish, corals, invertebrates or other aquarium surfaces directly to UV-C.\u003c\/p\u003e\n\u003cp\u003eKeep the switch, plug and electrical connections dry, use a drip loop and stop using the module if the cable or housing is damaged.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe ReefSweep Medium is a targeted treatment tool, not a guaranteed standalone cure for every dinoflagellate outbreak. Correct identification and addressing underlying aquarium conditions remain important.\u003c\/em\u003e\u003c\/p\u003e","brand":"3Dreefing-Solutions","offers":[{"title":"Default Title","offer_id":59268805951836,"sku":null,"price":59.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/0551\/4844\/files\/IMG-7013.jpg?v=1790275452","url":"https:\/\/3dreefing-solutions.eu\/products\/reefsweep-medium-uv-c-sand-bed-treatment-tool","provider":"3Dreefing-Solutions","version":"1.0","type":"link"}