Substrate Cleaner Aquarium 236 ml - Liquid Gravel sludge Remover live bacteria, biological breakdown, cleans substrate, gravel, against food waste, mulm, freshwater, saltwater

Biological bottom cleaner with live bacteria – breaks down detritus, uneaten food & organic waste in aquarium substrate – ideal for freshwater & saltwater tanks – no vacuuming or water change needed. Targets nitrate sources, phosphate pockets & harmful gases in the gravel bed – made with live cultures & natural mangrove extract – 100% safe for fish, shrimp & corals – boosts biological balance. Works deep below the surface – reaches under rocks & décor – prevents cloudiness & odours – supports a healthy, oxygen-rich substrate for stable tank conditions. Easy application – dose 20 ml per 100 L biweekly for dirty tanks, monthly for maintenance – just add directly to the tank – no filter shutdown or manual removal required. Trusted quality by ARKA – proven in biological aquarium care – developed with over a decade of experience – eco-friendly & effective – highly rated by aquarists & reefkeepers.