ISTA Surface Skimmer prevents dust and protein layer formation. This layer can filter the light that reaches the plant. It effectively draws the dust and protein to the skimmer which assures a crystal clear water surface which creates a healthier and safer environment, as it allows effective gas exchange and proper light for plants. ISTA Surface Skimmer Features: Increase photosynthesis, oxygen exchange and light penetration. Patented self-floating inlet will automatically adjust itself according to water level. Suitable with hang-on filters and external filters. Instructions: Needed to be connected with external filter or submersible filter to promptly filtrate the organism on the water surface. To adjust the surface water flow rate, simply rotate the pole for adjustment.
