Grass carp deployed into Muddy Creek near Clive are on their last warning from officials after failing to do their job - eat weed - to keep the waterway flowing.
Clive resident and former Hastings district councillor Mary Hannan complained about the shocking state of the creek after seeing it was jam packed with weed, rubbish and plants.
She spotted the mess in the creek at the back of Flowerlands, where she works and near where she lives off Main Rd just south of Clive.
"The mess in the creek is not helped by the fact someone has put big cactus plants into the water and it is all virtually stopping the flow," Ms Hannan said.
"A lot of my rates go towards the upkeep of that creek and it's just in a horrible condition."
Hawke's Bay Regional Council's drainage manager Dan Heaps said he visited the Muddy Creek site yesterday morning.
"The Muddy Creek water level is low at the moment so the weed is more visible than normal.
Staff weed-boated it [Wednesday] and they intend going in with a digger to clean out the top end that was not accessible by weed boat," Mr Heaps said.
"There are a couple of small palm trees, which have been dumped in there, but they are not blocking the flow and they are not out of the ordinary as unfortunately rubbish is regularly dumped in the drains.
"They will be picked out when the digger goes in there."
Muddy Creek flows out to sea via the Waitangi Estuary, near the Clive River mouth. Mr Heaps said similar creeks in the region were also at low water flow levels.
"But Muddy Creek is a little bit different because it is controlled by grass carp," he said.
"We're not that keen on sending the weed boat through too much because we are relying on the carp to do the job.
"We were looking at pulling them out because they didn't look like they were doing their job but we've decided to give it another go and we will be restocking them soon."