anyone know what these black or dark colored bubbles are? they are not like air bubbles but more look like a solid but wanted to know if they are bad and should i take them out? I think they are bad since the torch they seem to be attached to looks like the stem has eroded or eaten away if these things did it.
could be just a coincidence also, sorry for the deep blue as i took them late at night and the tank was ramping down the lights
could be just a coincidence also, sorry for the deep blue as i took them late at night and the tank was ramping down the lights