Bearded Dragon(s) in a 79 gallon aquarium.?

Well, for Bearded Dragons (BD's) I don't think it's necessary to own a hygrometer - humidity is not a big game-changer for such a hardy species. Instead, I would go with an infrared heat detector if you go with anything. So long as the BD's are misted daily and bathed weekly, the humidity won't be a problem at all; misting is critical in young BD's though. This will raise the humidity for the juveniles and you should mist them directly, mist them until they begin to lick their chops - this will ensure they are drinking. Secondly make sure they have basking spots, depending on the BD's age this may vary from 90-110 F (with variations from owner to owner; some will give smaller ranges for the basking spot, again this depends on age too). I find my adult BD likes it to be 98 F in the hot spot. I suggest using ceramic bulbs for the heat in the tank (they are reliable and long-lasting); I also find it better to avoid UV-Heat bulbs altogether; I prefer fluorescent UV lights (but these are my opinions, you can have your own methodology and for the most part you will find the way that works for you and your BD). As for multiple BD's, this is a slightly controversial topic; some owners will say to NEVER have more than one BD per enclosure while others will claim that one male per enclosure is an acceptable amount, with a respectable amount of females in the terrarium. Now, some owners have horror stories about keeping multiple males together (like you said), likewise some owners have horror stories of males harassing females to breed, while others never have a problem. Many owners will keep females together, and keep males out all together (since they seem to be the troublemakers). This is really up to you, depending on the floor-space of your tank this can be a limiting factor, otherwise you should form your own opinion and it must be kept in mind that all animals are different; each animal has its own personality.

Other things to suggest that you might want to look into/remind you of:

Reptile Carpet for your bedding (I recommend paper towels for hatchlings because it makes it easy to watch feces consistency)

Under-Tank Heating Pads

10.0 UV lights

Basking Spot (I recommend separate lamps altogether)

Cool Side of the Tank (usually the side with water, hides, and low light)

Day-Night light/heat fluctuation (75-90 F at night, 90-110 in the day; this greatly depends on the owner)

Dubia Roaches are an up-an-coming replacement to crickets (possibly)

Calcium Dosing

Gut-Loading

Green-Protein percentages change with age

Daily Misting and Weekly Bathing

Hope this helps! And good luck!

House one not two.

They are very aggressive and best housed alone. Yes, it's true, they can kill each other or beat each other up the severity of death.

80 gallons would be perfect for one who can get 2-3 feet in length.

I recommend repticarpet or packed clay. Other substrates contain too much humidity or can be ingested. Sand is a big no, no.

Also include a water dish. I usually would recommend like one of those cheap fountains that can be found at marts so its circulated and contains more water than small dishes.

Before considering Bearded Dragons, if you are not so fixed on the idea, this is just a suggestion but some nice sized snakes (that are tame) can be housed in such an enclosure with less cost to you. Just look into it.

Lol Ash, all your answers are ********. Bearded dragons are NOT aggressive at all, and do very well in groups as long as there is only one adult male. 80 gallons can house 2-3 adult beardeds depending on their size and gender, they rarely break the 2 foot mark, 90% of beardeds are around 16 inches in length. I have seen one hit 28 inches, but that's the largest i know of. Tile is by far the best substrate. Bearded Dragons rarely drink from water dishes, it is better to mist their tank daily to provide them with water. Sand is fine for adults. For a bearded you need a heat lamp 100 watts or more, you live in canada, so i'd suggest more, you want to keep his tank around 100 degrees under the lamp. You need a uvb bulb, but the flourescent tubes are much better. They eat a diet of crickets 50% and green vegetables (kale, etc.) 50%. Most people overexaggerate the complications of keeping reptiles, they are actually very hardy.

dont forget you need a basking bulb or heat pad also, if you go with the bulb will also need a night heat bulb, and for bedding sand with calcium and minerals in it. dont use eco earth dirt(thats the most worse bedding or reptiles) the size tank is a great size for two beardies, but yes they are know to dominated, or constantly fight, i have never actually heard of a pet beardie being killed by another beardie but they can injure each other. if, they grow up together they will more than likely get along good, only way to know if they will get along is to put them together, you should buy adults for that size tank, if you buy babies they should be kept in something smaller for awhile. hope this helps good luck,