random

Hey there, today i cam home to find that 2 of my fish have died a Tomini Tang and a Six line Wrasse, but i have zero idea of how it happened they eat everyday and they was acting perfectly fine yesterday i keep on top of my water parameters and to give a short overview they are pH - 7.9 NH4 - 0...

Umm...So I went to clean my skimmer sponge(outlet) the other day and noticed 2 or 3 small white clams. Does this mean something? Should I fix something? Or am I ok? They are white and about 1/4" wide. Tank is a almost 2 months old.

what is this, just showed up in a day