yea, that is not good... you should follow what delboybully had suggested.
delboybully wrote:
Fill the new tank now (leave enough room for the 10g's water to go in) and put all the heaters and filter on it, make sure you fill the tank with water the same temperature as the water in the 10g. Then transfer the water from the 10g, the fish and the filter. Leave the 10g fulter running on the 75g for at least 6 weeks
Do daily 25%to 30% water changes until your tank is cycled
nevertheless, i suggest you raised temp to 84 deg F and add aeration for
10 days to solve the ick/white spot. you were hit with it due to sudden
change.... what filter are you running now aside from the old one???