That's how the expression goes! I've been running a five gal Fluval Chi tank with one lone female betta. The water has been absolutely crystal clear since I removed the gravel. This past Wednesday, knowing the rest of my week was hectic, I did a quick 1 gal water change with water treated and sat overnight.
Soon after that, my crystal clear water started to cloud and it never cleared up. The Petco guy seemed pretty knowledgeable - he told me that by removing the gravel, I removed surface area for the 'good bacteria'.
Because of the water change, I messed up the cycled tank and the tank started to recycle
- that's why the water clouded up. He told me to put a thin layer of gravel back in, and wait a few days.
Does his explanation make sense? He also said with a 5 gal and only 1 fish, I should only make small water changes twice a month. Thoughts? Thanks for your help...