Thanks for your prompt reply.
I have tried unsuccessfully to get a photo because the fish are so small - you can't see any detail that would help.
So: Ammonia is slightly up (0.25) but I suspect because so many fish have died overnight - will do a couple of buckets water change. I did a test...
Hi guys
I'm new here, but not to fish keeping. I've had a tropical community tank for about 4 years. 180 litres in size. It is well established and cycled.
But I seem to be going round in circles at the moment and my husband has christened it the "tank of death".
I was down to only a...