【High borosilicate glass】: Glass Inflow and Outflow uses laboratory precision instrument-level manufacturing technology. The raw material is high borosilicate glass with a light transmittance of 92%. It is far more stable and transparent than any plastic material. It is resistant to aging and corrosion and can be used in both freshwater and seawater environments. 【Almost invisible】: Allowing maximum viewing angles and enhancing the perfection of your aquascape. 【Increasing oxygen levels, slowing down the flow, and sparkling water】 the water outlet is slightly higher than the water surface can achieve the effect of aeration to increase oxygen levels, when it is at the same height as the water surface, a beautiful lake ripple effect will be created. When it is completely submerged in the water,it can achieve slow flow - the water plants will not be disturbed by the rapids. 【Will not affect algae cleaning】: Glass Lily Pipe Inflow and Outflow is fixed to the outside of the aquarium by suction cups instead of the inside. There are no fixing clips on the aquarium frame to hinder operation and hide dirt, which is conducive to cleaning the inner wall of the aquarium,tools can be unobstructed. 【Precision manufacturing】: The inner diameters of the 13mm and 17mm glass Lily Pipes are 9mm and 13mm, respectively, and the glass thickness is 2mm. There is usually a decrease of inner diameter at the bends of the pipes, but LINLAN controls this error to a minimum, so that even the bends are still neat and beautiful. In an aquascaping tank, all the landscape designs and plant layouts are essentially poor imitations of nature. We are always striving to mimic nature while being tired of the visual distractions caused by equipment—these visible devices ruin the meticulously crafted work of aquascapers and reduce the overall completeness of their creations. But now, the Glass Lily Pipe Inflow and Outflow solves this problem with the following advantages: 1. Stable material, suitable for both freshwater and saltwater tanks. 2. Almost invisible, allowing maximum viewing angles and enhancing the perfection of your aquascape. 3. The trumpet-shaped outflow offers multiple benefits: oxygenation, surface ripples, and a gentle current that is plant-friendly. What makes LINLAN's Glass Lily Pipe Inflow and Outflow unique? 1. Minimal diameter loss at every bend. 2. If you choose an inflow pipe with a skimmer, we've adjusted the skimmer regulator to avoid constantly blocking part of the intake slot, improving water flow efficiency. Skimmer Rotation Adjustment Guide: Rinse the skimmer with tap water. Its surface may have a release agent, causing a hydrophobic effect that makes rotation and adjustment difficult. If you skip this step, the acrylic skimmer might take some time in the aquarium to reach optimal rotation. Don’t worry, this is harmless, and algae and microorganisms will make it easier to rotate and adjust. Ensure the inflow pipe is vertical to the ground with no lateral force. Additionally, the glass pipe should be parallel to the aquarium's side. If lateral force is applied due to the filter hose, use the provided suction cup clips to secure the hose. Rotate the flow control valve at the bottom of the inflow pipe to reduce the intake from the lower grid and increase the suction of the top skimmer. Gently press the acrylic skimmer, allowing water to flow through the grid. When you release your finger, water should flow into the grid. If no water flows, try further reducing the lower intake or increasing the filter pump’s power. If there is still no water flow through the skimmer after step 3, it indicates that the pump power is insufficient. Consider replacing the pump with a higher-powered model or lowering the water level. Since filter hose setups and pump heights vary between aquariums, we cannot specify a minimum required pump power, but we ensure that most mainstream canister filters and pumps can effectively drive the skimmer, typically with enough extra capacity. If water flows through the skimmer grid but the skimmer does not rotate, consider adjusting step 2 or try resetting after some time. Monitor closely for the first 30 minutes to prevent any abnormal suction of aquarium inhabitants. Skimmer Precautions: If the skimmer does not rotate but water flows through the grid, the skimmer is functioning properly and effectively removing oil from the aquarium surface. You can contact us for help and adjustment advice. Maintenance Tips for Glass Lily Pipe Inflow and Outflow: When disassembling, wear gloves: Hold the bent part for a better grip on the glass pipe. Gently move the hose back and forth and try to rotate the hose. If step 2 doesn’t work, try using a tool to gently pry the hose at the conne