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PureOrganism Guides

Plain-English guides for pet owners and nature lovers: what to do in a poisoning emergency, which household foods, plants and products are dangerous, and how to set up habitats for reptiles, fish and plants. Every guide cites the veterinary and scientific sources it draws on.

Pet Poisoning

• Antifreeze and Pets: Ethylene Glycol, the Sweet Poison in the GarageHow little antifreeze can kill a cat or dog, how the three stages unfold, where ethylene glycol hides, and why speed matters more here than almost anywhere.
• Blue-Green Algae and Dogs: How to Read the Water Before You Let Them SwimCyanobacteria blooms can poison dogs within minutes to hours. What the toxins do, how exposure happens, warning signs by the water, and what to do after a swim.
• Cannabis and THC Exposure in Dogs and Cats: Signs, Doses and Honest ConversationsHow THC affects pets, published dose ranges for dogs, why edibles are the usual cause, and why telling your vet the truth matters.
• Chocolate Toxicity in Dogs: Types, Doses and Worked ExamplesWhy chocolate poisons dogs, how methylxanthine content differs by type, published mg/kg thresholds, and worked examples for realistic situations.
• Grapes, Raisins and Dogs: What We Know and What We Don'tWhy a few grapes can injure a dog's kidneys, what tartaric acid has to do with it, and why no amount can be called safe.
• Human Painkillers and Pets: Ibuprofen, Naproxen, Aspirin and ParacetamolWhy the medicine cabinet is a top source of pet poisonings, with published toxic-dose figures for ibuprofen, naproxen, aspirin and paracetamol (acetaminophen).
• Lilies and Cats: Why a Bouquet Can Be an EmergencyTrue lilies and daylilies can cause kidney failure in cats from tiny exposures. Which plants count, what the timeline looks like, and how to keep cats safe.
• Suspected Pet Poisoning: What to Do in the First HourA calm, practical checklist for the first 60 minutes after your dog or cat may have eaten something toxic, and what a poison helpline will ask you.
• Rat Poison and Pets: The Four Main Types and Why Identification MattersAnticoagulants, bromethalin, cholecalciferol and zinc phosphide act differently and on different timelines. How to identify the product and why the packet matters.
• Xylitol in Everyday Products: Where It Hides and Why Dogs ReactXylitol is harmless to people but can drop a dog's blood sugar within 30 minutes. Where it hides, how to read labels, and the published dose thresholds.

Reptile Care

• Bearded Dragon UVB and Heat Setup: Ferguson Zones, Basking and Bulb CareHow to set up UVB and basking heat for a bearded dragon, using the Ferguson zone framework, a temperature gradient, and a UV Index meter.

Fish Care

• Betta Fish Tank and Heater Guide: Size, Temperature and Safe SetupWhy a betta needs a heated tank of about 5 gallons or more, how to pick and place a heater, and how to keep water temperature steady and safe.

Pet Safety

• Christmas and Holiday Hazards for Pets: Food, Plants, Tinsel and MoreA room-by-room look at the festive hazards that send pets to the vet, from mince pies and chocolate to tinsel, tree water and holiday plants.
• A Room-by-Room Pet-Proofing Checklist for Dogs and CatsA practical, room-by-room checklist for finding the poisoning and swallowing hazards in an ordinary home, from the kitchen bin to the garage shelf.
• Snake Bites in Dogs: What to Do in the US and the UKHow venomous snakebites differ between American pit vipers, coral snakes and the British adder, what owners should and should not do, and how to lower the risk.
• Spring Garden Hazards for Dogs and Cats: Bulbs, Slug Bait and FertilisersWhich spring bulbs are risky for pets, why slug pellets and bone meal need special care, and how UK and US rules on metaldehyde differ.
• Toxic vs Pet-Safe Houseplants: A Practical Guide for Dog and Cat OwnersWhich common houseplants are risky for dogs and cats, which are listed as non-toxic, and how to read the ASPCA database without being misled by common names.

Pet Nutrition

• How Much Should You Feed Your Dog? RER, MER and Working Out CaloriesLearn the resting energy requirement formula, how life-stage multipliers turn it into a daily calorie target, and how to convert that into cups of food.

Houseplants

• Monstera Light Guide: Understanding DLI, Window Light and Grow LightsWhat daily light integral (DLI) means for a Monstera deliciosa, how to estimate it at home, and how to use windows and grow lights without scorching leaves.

Birds

• Raven or Crow? How to Tell Them Apart in the US and the UKA field guide to separating ravens from crows using tail shape, throat feathers, bill, voice, flight and behaviour, with notes for American and British birdwatchers.

Not veterinary advice. The authors are not veterinarians. If your pet may have eaten something toxic, call your vet or a pet poison line now: ASPCA Animal Poison Control (US) +1 888-426-4435, Pet Poison Helpline (US/Canada) +1 855-764-7661, Animal PoisonLine (UK) 01202 509000. Fees may apply.