TellTail Buy on Amazon

A plant-based PrettyLitter alternative: how TellTail compares

If you like PrettyLitter's color-changing idea but want a plant-based, clumping litter you can flush, TellTail is a tofu litter with a urine pH indicator built in. It reads pH like PrettyLitter does, but it does not test for blood.

Updated 2026-10-11

PrettyLitter and TellTail are independent brands. This page compares publicly available information as of October 2026; check each brand for current details.

Side by side

PrettyLitterTellTail
Base materialSilica gel crystalsPlant-based tofu: plant fibers and plant starch, with a natural mineral binder
ClumpingOriginal formula is non-clumping; a clumping version is also soldFirm clumps
Normal colorDark yellow or olive greenNatural beige
Acidic urineOrangeOrange, then deep red when strongly acidic
Alkaline urineBlueSoft green, then deep green
Blood indicatorYes — redNo — TellTail reads pH only
FlushingNot stated as flushable — check brand guidanceFlushable\*
Where to buyPrettyLitter's site and retailersAmazon, with Prime delivery

PrettyLitter color meanings are from its help center. Source

Why people look for an alternative

When PrettyLitter may suit you better

Switching from PrettyLitter to TellTail

Mix a little TellTail into the current litter and increase the share over about a week. One thing to relearn: on TellTail, red means strongly acidic urine, not blood, and green means alkaline. The full scale is in the color chart.

Flushable* — TellTail’s plant-based clumps break down in water, so flush the clumps a little at a time. Place cat droppings in the trash, not the toilet. Not recommended for septic systems or older / low-flow plumbing.

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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.