Dymax Slim Flo SF-120, Nano HOB Filter, Small
SKU: DM-SF120
MSRP: $ 20.89
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Available Through Authorized Retailer
- The Dymax Slim Flo SF-120 is a hang-on-back filter built for freshwater planted tanks up to 4 gallons.
- It is sized for desktop tanks, shrimp bowls, and nano planted setups where space inside the tank is tight.
- It delivers up to 30 GPH of filtration through a wool carbon cartridge that traps waste and clears water.
- The slim external profile keeps the full 4 gallons of water volume free for your plants and livestock.
Dymax
Dymax is a Singapore-based aquatic brand with over 23 years of expertise in designing and manufacturing aquariums, filters, aquatic foods, and other fishkeeping products.
Nano HOB Filter for Planted Tanks Under 4 Gallons
The Dymax Slim Flo SF-120 Filter is a compact hang-on-back filter built for the smallest freshwater planted tanks. It hangs on the tank rim and pulls water through a wool carbon cartridge that captures particulates and removes discoloration. The motor is quiet enough that you will not notice it running, which matters in a desktop setup where noise carries.
At 30 GPH with adjustable flow, the SF-120 gives you full control over turnover rate. That makes it practical for tanks housing delicate shrimp or slow-swimming fish that struggle against a strong current. A leveling knob lets you dial in a flush hang even if your tank rim is not perfectly level.
Key Features:
- Hang-on-back design keeps the full interior volume of the tank free for plants and livestock
- Adjustable flow dial lets you reduce output to protect shrimp, fry, and slow-swimming fish
- Wool carbon cartridge captures particulates and removes water discoloration
- Quiet motor operation suitable for desktop and bedroom setups
- Leveling knob accommodates tank rims that are not perfectly level
- Intake sponge prevents small fish and shrimp from being drawn into the filter
- Replacement cartridges are sold separately as a 2-pack (DM-SFC-S)
Ideal For:
- Desktop planted tanks of 1 to 4 gallons housing shrimp, a single betta, or a small schooling nano fish
- Nano aquascape builds where any in-tank equipment would disrupt the hardscape layout
- First-time hobbyists who want a simple, no-plumbing filter that is ready to run out of the box
Pro Tips:
- Set the flow on the low end when running shrimp. Neocaridina and Caridina shrimp are sensitive to strong surface agitation. Start at the lowest flow setting and increase gradually only if water quality requires it.
- Replace the cartridge before it clogs, not after. A clogged cartridge reduces flow and can cause the filter to overflow at the rim. Check it every three to four weeks and swap it out before you notice a drop in output.
- Pre-wet the cartridge before inserting it. A dry cartridge can trap air and cause the filter to run noisily for the first few minutes. Soaking it briefly before installation gets filtration started right away.
What's Included:
- Dymax Slim Flo SF-120 filter unit
- Intake tube
- Intake sponge
- Leveling knob
- Filter media (wool carbon cartridge)
- Power cord
Specifications:
- Model: SF-120
- Tank Size Rating: 1–4 gallons
- Max Flow Rate: 30 GPH
- Flow: Adjustable
- Filter Media: Wool carbon cartridge
- Replacement Cartridge SKU: DM-SFC-S (sold separately)
Warranty
CoralVue, Inc. hereby guarantees this product to be free from defects in material and workmanship for a period of:
- 1 Year
Warranty is activated on the date of purchase.
This Standard Limited Warranty applies and is limited as follows:
- To the product only as long as it remains in the possession of the original purchaser.
- To the product that has not been subject to accident, misuse or abuse.
- To the product that has not been modified, altered, defaced, or had repairs made or attempted by other than CoralVue, Inc.
- That CoralVue be immediately notified in writing within ten (10) days of first knowledge of defect by owner or his agent.
- That CoralVue, Inc. shall be given first opportunity to make any repairs, replacements or corrections to the defective construction within a reasonable period of time.
- Under no circumstances shall CoralVue and/or the Manufacturer be liable by virtue of this warranty or otherwise for damage to any person or property whatsoever for any special, indirect, secondary or consequential damages of any nature however arising out of the use or inability to use because of the product defect.
Instructions:
- Attach the intake sponge to the bottom of the intake tube.
- Hang the filter unit on the tank rim and use the leveling knob to achieve an even, stable fit.
- Fill the filter body with tank water before plugging in to prime the pump and prevent dry-start noise.
- Insert the wool carbon cartridge into the filter chamber.
- Plug into a standard outlet and set the flow dial to the lowest setting.
- Gradually increase flow as needed for your tank inhabitants.
- Replace the wool carbon cartridge every 3 to 4 weeks, or sooner if the flow noticeably drops.
Note: Do not run the filter dry. Always ensure the intake tube reaches below the waterline before powering on.