I sanitized my acrylic tank last week, and I've set it up for one of my bettas who's in a smaller tank. My fish is still in his old tank. The water was fine for about a day, but then it got cloudy. That was two days ago, and the cloudiness still hasn't gone away. Any idea what this is? Is it safe to put my fish in?
Have you tested the water? Did you use sand or gravel? It could be a sign of high ammonia. We had an issue with that before and just had to do a lot of water changes. It eventually cleared once the tank cycled. At one point we couldn't even see from the front to the back of the tank. (My husband totally screwed it up by doing a newbie goofup! We lost some fishies.)
The tank had a betta in it before, but it's been sanitized since then (the betta got dropsy and died). The new set up is silk plants that have never been used before, gravel that has never been used before, and the (also sanitized) dino skull, heater, and filter that was in the tank before.
There hasn't been anything in there to cause ammonia buildup.
The cloudiness cleared up, so after testing the water I decided to put him in there. He seemed slightly perturbed with the bubbles coming out of his new filter, and kept trying to attack them. But he's checking out all his new plants, and it's really nice to see him with more space. I'll post pics once he's settled a bit more.