Rich17
Hi all
Hi all i got a phone call 2 days ago of my dad regarding his pond so i rushed round and when i got there he was removeing dead koi 6 in total and 9 hardly moving and struggling so i tested the water and all results were spot on but water had gone black and cloudy over night the filter was still running but looked like it had slowed down and the air stone had come apart from airstone but pipe still in water i come to the result of lack of oxygen but i would just like a bit of clarification the koi that was only just alive are now fine as i rushed them to my pond and checked them every so often 5 swam properly within 3 hours and 4 took a day and half approx to they was right but they are all happy and fine now