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Fish & Aquatics questions, answered

3,895 answers about fish & aquatics

A healthy aquarium is a balanced one — water chemistry, filtration, stocking and feeding all work together, and most fish problems start with the water. This page gathers the fish and aquatics library of KinsLe Answers in one place, organized by topic for freshwater and saltwater keepers alike. Every answer is original, written by KinsLe, and tied to a real KinsLe feature.

Fish & Aquatics — KinsLe Answers

Safety & Lost Pets

301 answers in Safety & Lost Pets — page 13 of 13

What should I do if the tank starts leaking?

Act fast and in order: keep clear of water near sockets, switch off the tank electrics at the outlet, and put towels down to protect the floor. Catch fish gently into a food-safe container filled with tank water, add a battery air pump if you have one, then siphon the tank level down below the leak. A cracked pane or…

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What household sprays are dangerous near a fish tank?

Treat every spray as tank-dangerous: aerosol air fresheners, fly and ant sprays, spray polish, window cleaner, disinfectant sprays and hairspray can all reach the water through the air pump's intake and the surface film, and fish are poisoned at dilutions people cannot smell. Never spray in the tank's room; apply…

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Is my tap water safe for fish without treatment?

No, untreated tap water is not safe to put fish into, because water suppliers add chlorine or chloramine to make it safe for people, and both are harmful to fish gills and to the beneficial bacteria a filter depends on. Treat every batch of new water with a dechlorinator that neutralises chlorine and chloramine before…

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How long should I quarantine new fish before adding them?

Quarantine new fish for two to four weeks in a separate tank before they join your main aquarium. That window lets hidden parasites and infections show themselves while the fish recover from transport and learn to eat, without exposing your established stock. Keep the quarantine tank cycled or closely tested, with its…

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How do I keep aquarium electrics safe around water?

Give every aquarium cable a drip loop, so any water running down the cord drips off at a low point below the socket instead of reaching the plug. Power the tank through a GFCI or RCD protected outlet, keep sockets and power strips off the floor and away from splashes, and never reach into the water while equipment is…

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How do I acclimate new fish to my tank?

Float the sealed bag in your tank for 15 to 20 minutes so temperatures equalise, then open it, roll the top down, and add a small cup of tank water every five minutes for 30 to 45 minutes. Net the fish into the tank and discard the bag water rather than pouring it in. Dim the lights, keep the room calm, and skip…

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How do I stop fish jumping out of the tank?

Fit a tight lid first and seal every gap around filter pipes, cables and feeding hatches, because determined jumpers find openings far smaller than owners expect. Lowering the waterline an inch or two below the rim gives a leaping fish room to arc and fall back in instead of out. Then look for the trigger: test the…

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Do I really need a lid on my tank if my fish might jump?

Yes — many common fish, including bettas, are surprisingly good jumpers and can slip through even small gaps around filters and cords. A snug lid also slows evaporation, keeps dust and household pets out, and helps hold in warmth. Kinny can field extra questions you pose about keeping jumpers under a well-sealed lid…

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What should I do for my fish tank during a power outage?

Keep the lid closed to hold in heat, avoid feeding during the outage, and don't open the filter unnecessarily since your fish will produce less waste when they're quiet and unfed. For longer outages, a battery-powered air pump can help with oxygen, and wrapping the tank in a blanket can slow temperature loss — then…

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How can I child-proof my fish tank?

Place the tank on a sturdy, level stand a child can't climb or tip, secure the lid, and keep food, chemicals, and nets stored up high and out of reach. Teach kids to tap never and to watch with hands off the glass, and supervise little helpers during feeding so too much food doesn't go in. With KinsLe's Family…

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