Bullhead – cottus gobio
Description: The Bullhead is a freshwater fish that is widely distributed in Europe. The bullhead has a large broad head and tapering body, large fins and a rounded tail. It is a master of camouflage displaying various shades of brown, black and white in various patterns. The eyes are located near the top of the head. When it rests on the bottom, the pectoral fins flare out resembling wings.
They are also known as Millers Thumb.
Maximum Size: Upto 6″ but on average 3-4″ when mature.
Environment: Commonly found in river and streams around the UK. They are often found in lakes and ponds that are on floodplains. They prefer a rocky substrate as that is where they hide and breed. It is recommended that a suitable substrate is available for these fish to thrive.
Water Conditions: Bullheads require a pH range of 7-8.5, Ammonia and Nitrite to be virtually 0ppm and dissolved oxygen saturation to remain above 8ppm.
As with any pet, please fully research for yourself to ensure that you can accommodate a fish of this type in your home.