Hi there..
Can anyone recommend an expert on Aquarium fish (mainly koi and goldfish) ,pond care and filtration systems?
I have an indoor pond. The fish have suddenly started dying off and it's very depressing to watch. I've done all the basics (water changes/cleaning/ salt/etc) but nothing seems to help.
Please let me know of anyone. So that I can get some advise
Thanks in advance
Have a nice day :)