Nitrite Checker For Koi Ponds Showa and the sumi pattern developing

and the sumi pattern developing in a chequerboard style which is very desirable

That gives us invaluable insight and practical experience of what feeds work well in different situations

Lovely clean head with crisp pattern

Light source LED @ 470 nm

As per fb messages

Nitrite Checker For Koi Ponds Showa and the sumi pattern developingIt's essential to monitor the most common toxic pollutants in your pond regularly, and to monitor more frequently when your pond is going through a big change such as a change of seasons, introducing new fish, initially starting a pond, or after extreme weather conditions. The two most common toxic pollutants that can damage your koi, or even kill your koi, are ammonia and nitrite. Losses due to high ammonia or nitrite are unfortunately too common.