bought dd two gold fish(different breeds but same idea)saturday, had tank for 8 days before to get water ready for them etc...first fish lasted 2 days,s tarted sitting at bottom of tank and only moving occasionally then it was frantic flapping of fins..next morning found her floating at top
took her to pet shop with sample of tank water and they said amonia too high, buy a plant, dont feed other fish for 24 hours and theyll replace the fish at weekend to ensure water is ok by then.
get home put plant in other fish swimming about madly as normal..last night sat in corner at bottom of tank..similar to other one....still there..but what can i do????dont want both to 'float'
..dd is v.upset