The only Fluval filters I have seen and used are external cannister types and they are amongst the very best perfoming filters available. I have never heard of an in tank Fluval.
Maritime archaeologists are archaeologists who specialize in studying underwater cultural heritage sites, shipwrecks, submerged landscapes, and other underwater artifacts. They use specialized techniques and equipment to investigate and preserve these submerged sites.
Yes.
No.
you can put it in a 5 gallon bucket and rinse it out with the garden hose. if it is still cloudy, add some water clarifier that will clump up all the debris.then the filter will suck it all up. do not put fish or plants in during this process- it will harm the fishes gills and make a carpet of dust on your plants.since the substrate is so light, it will clog a gravel vac. the plants should work as a filter.
No the touchscreen is unable to work underwater.
An underwater mp3 player can work with no hassle underwater so long as you do not go beyond 5 meters or 15 feet underwater in which the sound frequency would get messed up.
yes
I would suspect that their lifetime would be many years. The media rings should only be replaced if they are decomposing or are totally blocked and have lost all their ability to house the bacteria that forms as and where they are supposed to. The normal thing to do is to wash about 3/4ths of them well and then only rinse the other 1/4 before putting them back to work in the filter thereby keeping the cycled bacteria alive and working.
There are new headphones called h2o audio. These are the only head phones the will work underwater because they have a protective waterproof material. It is not suggested to attempt using basic headphones underwater because they will fail.
Yes.
An oceanographer is a scientist who studies underwater life. Most of their work involves photography of diverse plants and animals in the ocean.
Underwater photography can be done with most regular camers with a underwater plastic body around the camera or with specific water resistant underwater cameras.