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What do TellTail's colors mean?

TellTail stays its natural beige when your cat's urine pH is in the normal range. It shifts toward orange and deep red when urine is acidic, and toward soft green and deep green when it's alkaline.

Urine pHColorWhat to do
About 4Deep redStrongly acidic. Call your vet this week — sooner if your cat is off food, vomiting, hiding or lethargic
About 5OrangeAcidic. Check whether your cat eats a urinary diet, add water to the routine, and book a urinalysis if orange keeps coming back
About 6–7Natural beigeNormal range. Nothing to do
About 8Soft greenAlkaline. Re-check a fresh morning clump before breakfast; if it stays green for several days, book a urinalysis with culture
About 9Deep greenStrongly alkaline. Confirm with a clump scooped within an hour or two; if it's still deep green, call your vet

TellTail holds its beige across the normal middle and only begins to shift below about pH 5.3 or above about 7.7.

Red on TellTail means strongly acidic urine — it is not a blood test. TellTail reads pH only.

Read a fresh clump for an honest result: urine runs more alkaline after a big meal and keeps drifting as a clump sits.

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TellTail is a cat litter, not a medical or diagnostic device, and does not diagnose any condition. A color change shows your cat’s urine pH has shifted — an early reason to keep watch and check with your vet.