u/MustacheCash-Stash

We have a heavily planted 20gal tank and our GBR wasn’t doing so hot. We tried our best to keep him alive and added a pump with O2 stones, but at this point we haven’t been him in 3 days so we’re assuming he’s dead. How do I go about finding the body in a heavily planted tank with wood? There are so many hiding places for the fish we can’t see. Checked ammonia an hour ago and it’s still ok for now but fearing an ammonia spike from a dead fish. Considering getting a plumbing camera from Home Depot but would appreciate cheaper suggestions. Thanks in advance.

Is this something to be concerned about? It appears there’s condensation in the unit, but I’m not sure if it’s normal. 2nd picture is the heater when it first got turned on. This is the 100W heater from the TopFin 20gallon starter kit (from PetSmart).