Help !

[jawg1412]

please can anybody help ive just helped a freind set up atropical tank his old tank had an angel 5 golden barbs 2 plecks and 2 oversized goldfish at atemp of 82 the tank size is 2x1x18 not a good mix although everything in the tank seemed in good shape i reset the tank clearing out all old fish taking temp down to 77 washed gravel in clean water only replaced gravel and put in new plants from aqua shop ph 7 nitrite 0 nitrate a little high but did water change 25% water already cycled and filter working good the problem is that out of 10 guppies he has lost 5 and out of 3 bettas 1m 2f has lost 3 please can anyone help or give me any idears what to do next as my brain is about to explode thanks

 

[three-fingers]

Ok, i would like to help but i find it hard to understand. Use full stops and capital letters, then i may be able to understand a bit better. And this is the complete wrong forum to post in, go to the emergencies forum. Your post has nothing to do with 'Invertebrates, Amphibians & Aquatic Reptiles' at all .
As i said, i would love to help, but if you want help it's better to be understood.
Did you test for ammonia?