Something unusual happened in my 2.5 gallon tank that is housing one betta. I've been using this tank for a while and it housed two other bettas successfully before my current one, Rouge, has occupied it. I never had any issues with things growing in it or residue left on the walls.
I've been having some trouble with this one, though. I've had this betta for a week. I got him some new white colored gravel. Before I've always used painted gravel, so the tank was pretty cloudy so I am assuming that's what caused it. It would always cloud up after changing it. So I'd do 50% water changes everyday. I have done two 100% water changes since I got him. Tonight I just did my second one. This time I cleaned it VERY good.
As slimy, cloudy film had grown on the sides seemingly overnight. If touched it would peel or flake off and could be visibly seen floating in the water. The water also had a really disgusting, slimy feel to it. The surface of the water was covered with this film.
Through all this, my betta has never been bothered. He's happy and active and likes his food, so I am assuming it isn't bothering him but it sure is bothering me!
When I cleaned it today I made sure to scrub the sides really hard and got pretty much all of it off.
I am not sure if this is the source of it, but I thought I'd mention it. I have a betta hammock from another tank. If you have read my other threads, you will know what I am talking about. All my fish died in it and the water really clouded up. We came to the conclusion it could be an ammonia build up. I rinsed the hammock off really well and put it in Rouge's tank and it happened shortly after. It is likely coincidental but I thought it may be a helpful thought.
Does anybody have any idea what this stuff may be and how to keep it away?
Also, there is a problem I have had with this tank even when previous bettas occupied it. After a couple of days, the water turns really smelly and stagnant. Is there anything I can do to get rid of this unpleasant odor? Does it affect the fish?
Here is a pic of my newly cleaned tank, for those who would like to see it. I think it looks all crystal clear and pretty. :P
Thanks in advance for any help!