I have 3 :)

29 gallon semi-aggressive freshwater
new 16 gallon reef
2.5 gallon freshwater that travels back and forth to school with me

i have two!

a 55gal african cichlid setup
and a 22gal reef that is a work in progress...i think it needs more than one mushroom polyp to be considered a true reef

I have one tank. a 55 gallon.

4 tanks and a bowl

-28 gallon nano cube reef
-20 gallon long fowlr
-6 gallon fluval edge freshwater planted
-3 gallon picotope reef
-1.5 gallon freshwater planted ghost shrimp bowl

1 24g

I kind of want a pico though...

55 Gallon reef
1.5 Gallon reef
21.5 Gallon frag tank
60 Gallon FOWLR
10 Gallon freshwater
20 gallon freshwater

1x 75 gal fresh with mono argentus, sabease and koi
1x 20 gal long salt with green spotted puffer and clowfish

1.5 gal. pico reef tank
1.5 gal. overflow freshwater crab tank
18" cube terrarium with a 3 gal. fish area freshwater
.5 gal. betta tank
.5 gal. frog tank

Man, the way things are going with me, soon every room in the tank is gonna have an aquarium in it! lol. There's a FW 6g Fluval Edge shrimp aquarium in the living room, a 10g FW fish tank in my mother's bedroom, and a 12g reef Nano-Cube in my bedroom. Soon I'll probably have at least another SW reef tank, somewhere...lol. Is this too much for just one guy to take care of each week, or what? lol.

1 125g reef
1 29g BC

love them both <3

4 tanks for me.
6.6 Fluval
14 BC
29 BC
34 Solana

6 active
6 inactive
1 snake

9 gal, nanowave nine
29 gal red devil tank
30 gal red eared slider tank
1 1/4 gal fresh planted
1 gal beta tank
3/4 gal beta tank

Not set up
55 gal
30 gal
20 gal
10 gal
5 gal
Not sure if it counts but I also have 12x12x18 terarium with a california king.

4 tanks
125 gal
40 gal
20 gal
10 gal

5 total

2-REEF
2-FRESH
1-TURTLE