I'm sorry to hear. Maybe you could try a few more options. The filter for a goldfish tank should be rated for 4x the tank size, so 240 gallons for that tank. Cycle is just dead bacteria in a bottle, it won't help the tank at all. Don't waste your money on cycle. Biospira is the only proven product for live bacteria. You have to keep it refridgerated until use and it expires a few weeks after its produced so you have to make sure you watch the expiration dates when you buy it. Try going with regular water changes only adding dechlor rather than so many extra chemicals.