Action 5: The siphon will draw up lesser gravel particles and sand that should be beneficial into the aquarium. Sift these in the filthy water, cleanse them, and change them if the tank has been cleaned adequately. Subsequent, clear out the filter material, including new bio sponges or filter substrate. https://pet-food-cost-uae97418.activoblog.com/43100541/a-simple-key-for-aquarium-care-uae-unveiled