Okay... I used a siphon to gravel vac and take out that half eaten algae disk. I had to break it apart. I poured the water down the sink (the one nobody uses here)... I replaced my water with tablesalt water (2tsp per gallon, 2 gal change, 4tsp)... When I replaced the water, apparently the pieces of the algae disk went to the filter with it(I never dump in tank. I dump in the filter). It's like, 1cm by 1cm piece (the whole thing put together)... What do I do?
