Hi Thanks for all the replies. I think Ill invest in a testing kit and perhaps make a mental note about this shop. Perhaps do more of my own research in future as well.
The first one to die had spots all over it about the size of salt grains. Some of the others had spots but some didn't appear to have any white spots. I thought the tail of one of the last ones to die seemed to be ragged. I noticed the Angel fish had a few white spots and even had a white spot...
I have happily been keeping tropical fish for a couple of years. Im a novice really and guided by local aquatic shop. They test the water for me and tell me which fish will be ok in my tank and I have always found them helpful.
I recently purchased 4 platies from the shop after about 4 days we...