jona74
Aquarium Advice Apprentice
Was doing a PWC and noticed that my entire substrate is carpeted by a thin layer of what I can best describe as looking like "spider web" looking strings. I just noticed them since the lower level of water in my tank during my PWC has caused some stronger flow near the bottom and I can see the strings waving freely from the substrate. My tank is 3 months old, and I have diatoms on glass and substrate as well. The bloom has decreased somewhat over the last few weeks, and I am of the understanding that the diatom bloom is a normal process of a new tank. You can see the strings on the substrate in the pic as well as on the darker shell in the middle of the pic. I just added a sand sifting sea star 3 days ago, but I am unsure if the stringy things were there prior. Any info on this would be appreciated