Algae infestation

Excessive fish stock and excessive feeding form a nutrient surplus in the water

Remove fish, / feed them less / use a Pontec® / pond filter

Falling leaves and remains of dead plants

Skim off / suction off leaves and plant remains / use Pontec® pond filters

Too few plants / wrong plant selection

Change the plantings

Shallow pond (water warms more intensively, thus there is more algae growth)

Use Pontec® pond filters, recirculate the water

Pond has been newly created? Balance could not yet be established

Fish out the algae or vacuum it out with Pontec® PondoMatic

Algae slick (through string algae)

Removal with the pond pliers / net / vacuum off with PondoMatic L/XL

Turbidity

Suspended solids

Use Pontec® pond filters

Suspended algae

Use Pontec® pond filter with UVC light

Excessive fish stock / excessive feed

Remove fish with the pond net / feed less

Odour

Pond is out of balance

Partial water change

Water loss

Normal evaporation or evaporation through watercourse

Add water

No capillary barrier (wicking effect through the plants and soil adjacent to the pond)

Build a capillary barrier between water and garden plants

Leakage

Patch the leak (tip: Condensed milk in the water locates the leak point)

Diseased fish, dying fish

Harmful organisms (bacteria, virus, parasites, etc.)

Use Pontec® filter with UVC device

Toxins

Pontec® pond filter with UVC light, partial water change

Plant damage

Plant pests

Ask the specialist at the dealer

Toxins

Partial water change

Foam

Excessive protein or excessive phosphate content

Use Pontec® pond filter, avoid fertiliser entry, check the fish feeding, partial water change