All local authorities in Wales should pay the same for care home places, the organisation that represents the sector has said.
The amount is set by councils and Care Forum Wales said there was a huge difference between counties, creating a "postcode lottery".
Homes in two neighbouring counties are currently seeing a £70 difference in weekly charges for basic care with owners saying it could lead to more closures.
The Welsh government said its new National Office for Care and Support was considering how "to bring about consistency" but fees would differ due to "factors like land values for care homes".
Orme View care home in Llandudno, Conwy county, has seen its fees go up this year, along with every other home in the county.
That is because the county council has broken away from a system whereby all the councils in north Wales agreed to set their fees together.
It is now setting fees based on what an independent assessor said should be paid, which were a lot higher than they had been.
The new system was adopted in April, and Steffan Robbins from Orme View said the increase has made a difference.
"It's an amazing, positive step forward," he told the Politics Wales programme.
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https://www.bbc.co.uk/news/articles/cn039png86zo