So I have two turtles (male and female) under 5months old in a 10 gallon tank.
I have a H.O.T power filter 45 running 24/7. Water change (together with change of new foam pad) happens once every 2 weeks at 30-40%, and I pick up all the poops and left overs whenever I see them. I have UVB light running around 14-16 hours/day, and water temperature is kept at 18-21 degree celcius.
Lately, there seems to be some white objects forming on the side of my glass tank. I tried to brush them off but it forms again shortly after. I;m pretty sure there aren't much ammonia in the tank since I usually feed them in a separate container and pick up after them as much as I can. I need to know if those things on my wall are what is called the "beneficial bacteria".
Also, few weeks ago there was a power outage at my home and the water filter stopped running for about 3 hours. When the power came back on, I see worm-type organisms moving on the side of my tank. They are about less than 1cm long and destroyed as I touches them. Initially these organisms occupied all four sides of the tank, when the filter started to run again, it sucked them all in and persumebly died. I've never seen those things since, but I'm afraid that these worms are coming back.
Anyone had similar problem before? What should I do?
Thanks a bunch!!

