Hi to those that are sceptics. No I’m not trolling, it’s a genuine question. It’s a known fact that helium can and does kill fish, birds. The helium sits in their stomach preventing them from eating, I’ve googled it, where they then starve to death. I was thinking that the fish could have inhaled the helium whilst they were feeding as the helium does lay on the surface until it dissipates. It’s between my knowing the balloon was there to removing it from the pond as to wether the fish have swallowed/inhaled the helium. I’ve had fish for twenty years and never had anything like this happen.
To brokensword, thank you for your advice. My pond is ,5000lts, 3ft deep, no new items added, Constance flow of water from the water fall, filtering all the time through the pump to the filter back to the pond.
The fish are so lethargic to the point we’re I can touch them, no open wounds or sores, no fin rot or other signs of disease.
Hi Maggie nice to chat with you. I do have other fish in my pond, gold fish they are also dying, no signs of diseas either. So all you lovely people thanks for your advice I will test the water although I’m not sure what to look for?. I’ll keep you updated as to what I find.
I live in liverpool uk. Bye for now.