Please help after routine maintenance and water change I loss 4 fish

[TommyD]

@TommyD - and many would say the same about barley extract and beneficial bacteria. I don't disagree with you about water changes, but your comment is just proof that we all approach pond keeping in our own fashion!

Agreed!! I guess my point is once you are cycled the bacteria level alone should keep your water in check.. mine gets a lot of sun so the barley is a nice natural way to keep my algae to a minimum. Best of luck to you(also I just realized this post is almost a year old) hope your issues are resolved