Slanted Diffuser

  • For aquariums up to 75 L (20 US gallons)
  • Low profile design excellent for minimizing the visibility of the diffuser
  • Simple and easy to use

The Slanted Diffuser is a pollen style CO2 diffuser that connects to CO2 injection systems to easily and uniquely disperse CO2 gas into the planted aquarium. The elegant and low profile design of the slanted diffuser makes it ideal to minimize the visibility and intrusiveness of the CO2 injection system on planted tanks. The Slanted Diffuser has a 15 mm disc.

Compatible with 6 mm (1/4") - Standard Airline Tubing. Suction cup included.

Rinse glassware with warm water. Attach suction cup and desired tubing (Compatible with 6 mm (1/4") - Standard Airline Tubing) to the diffuser.

To attach tubing to glassware, wet the inside of the tubing with water at the attachment point and carefully slide tubing over glass. The use of other lubricants is not advisable as these usually make the tubing slide off of the glassware too easily. To avoid breakage when removing tubing, do not pull tubing off of glassware. Instead, cut tubing carefully along the attachment length to release the glassware.

Mount your diffuser using the suction cup(s). It should be positioned low in the aquarium. When removing or repositioning the diffuser, pull by the suction cup(s) rather than the glass to avoid breakage.

Install check valve (not included) inline with tubing outside of the aquarium

Once securely mounted, turn on CO2. Observe bubble count and adjust CO2 to desired flow rate. Some of Seachem’s diffusers have a bubble counting feature. Otherwise a separate Seachem glass Bubble Counter is available.

A: The slanted cut of the Glass Slanted Diffuser helps to protect the disc from detritus and direct the flow of bubbles into the filter outflow while retaining the sleek, low-profile appearance of the diffuser.

A: First, check that your tank has a volume CO2 and pressure on the line via any gauges. Second, check any bubble counter in line to see if you have flow of CO2. Next, check for any kinks, blockages, leaks in the line. Lastly, it is often required that the unit run 24 hours before flow of CO2 is consistent. Please allow 24 hours of run time to see if there is a long-term issue.

A: It is possible in time that organics and algae can work to clog the very fine pores that CO2 must flow through. Remove the diffuser and perform a thorough cleaning.

A: To clean a diffuser, generally soaking a unit in a very small amount of bleach and warm water overnight and then soaking in fresh water with Prime® or dechlorinator for a few hours is sufficient to clean away debris and algae. If this is performed without success a soak over night in water with vinegar may be necessary.

A: The exact bubbles per second will vary from system to system. It’s a good idea to start with about 1-2 bubbles per second and adjust according to CO2 concentration and utilization in your aquarium. Seachem recommends the Seachem Glass pH Checker to monitor CO2 concentrations in the aquarium; adjust the number of bubbles per second until the pH Checker remains green.

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For aquarium use only. Keep out of reach of children. This item is fragile. Use care when handling and removing suction cups and/or hoses. Dispose of broken glass in appropriate container.

3155 Slanted Diffuser
3155 Slanted Diffuser Package