I came home from work last Friday and saw these two big kois, ~25" kohaku and ~27" Aka Matsuba in the pond . My wife, with my brother's help, surprised me with these.
I really like most of these kois but they are kind of expensive for a rookie like me. And I don't feel like I am ready for them yet. So, I did not buy any and stay with my plan to start slow until I am ready.
Well, here is the problem: They brought the fishes home and dropped in the pond The matsuba has been doing OK, swimming around and start eating. The Kohaku has some issue. It's not very active. Its lays down at the bottom for little while, then swimming around, and came up the surface, with half of his head above the water like to gasp for air, then come down, and lay at the bottom again. It's been doing that for last 3 days. It seems to do better (swimming more often), but still not normal. All my other fishes are doing OK, no sign of issue.
My question is: do you think the Kohaku behavior is due to stress of moving, and new environment, and need to give itmore time to adjust? Or do you think it may have some other issue? Any advices or your similar past experiences from everyone is greatly appreciated.
I test the water regularly and PH: ~7.5, Ammonia < 0.25, Nitrite = 0, Nitrate = 0, KH 6drops.
hp.