Gill Maggots

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Feeding Your Koi	How to Quarantine Koi	Koi Nutrition
Koi Diseases (bacterial)	Koi Diseases (fungal)	Koi Diseases (parasitic)

Gill Maggots

Gill maggots are the mature females of the parasitic crustacean Ergasilus.

Ergasilus (gill maggots) will appear as grayish black and white parasites several millimeters long infesting the gills.

Heavy infestations can cause severe damage, eroding the gill filaments and allowing secondary infections to develop.

Koi & Pond Tip of the Day

February 5th, 2012

Ponds with vinyl liners or of fiber glass construction tend to show a decrease in alkalinity over time and may need supplements to maintain an acceptable level. Raise alkalinity by adding Calcium Carbonate, concrete blocks, oyster shells, limestone, or even egg shells.

Tips by » Koi Clubs USA