I had a grain of sand move from one area of my tank to another.
I'm concerned on what to do.....
Should I do a total tank teardown?
Should I do a massive water change?
Should I get all new powerheads?
Should I scoop out all the sand and do a thorough rinse?
Do I just replace the sand?
If I replace the sand should I replace 100% of it? 50%? 25%?
Please help