TellTail
TellTail changes color with your cat’s urine pH. Match the clump’s color to the band below. A healthy cat usually sits around 6.0–7.5, and the litter stays beige right across that middle band — most days you’ll see no change at all.
Rarely the diet alone — more often dehydration, a cat that has stopped eating, or a metabolic upset. Call your vet this week, sooner if your cat is also off food or lethargic. Ask for a urinalysis.
Usually the food: urinary formulas acidify on purpose, and low water intake exaggerates it. Check the bag, add wet food or a fountain. If orange keeps returning across a week, book a urinalysis — acidic urine suits calcium-oxalate crystals, which diet can't dissolve.
Ordinary carnivore chemistry. The indicator has no reason to react, and seeing nothing is the product working. Nothing to do — keep scooping daily.
A big meal a few hours earlier does this, and so does a clump that sat all day. Re-read a fresh clump before breakfast. If soft green keeps appearing on fresh morning clumps, ask for a urinalysis with culture — alkaline urine suits struvite crystals.
Most often a urinary infection — or a stale clump overstating it. Confirm with a clump scooped within an hour or two of use; if it still reads deep green, call your vet for a urinalysis with culture.
TellTail is a cat litter that changes color in response to your cat’s urine pH. It is not a medical or diagnostic device and does not diagnose any condition. If anything about your cat’s health concerns you, talk to your veterinarian.
← telltaillitter.comWant certainty on a reading? Ask your clinic for non-absorbent collection beads — you swap them into the box for a day, they collect a clean sample, and the lab measures pH together with concentration, crystals and bacteria. Two things make any home reading unreliable: a clump that has been sitting for hours, and a multi-cat home where you don't know whose it is.