One of my more unusual purchases was a Pygmy Pufferfish. This little fish is the most fascinating hunter I have ever seen, which is odd when one considers that he is less than an inch long. Considering he is a molluskivore, I stocked his tank with snails and let them run for a couple weeks. He has already dramatically thinned the population.
As I write this, I am watching him try to work his way into a particularly obstinate ramshorn. This snail is quite literally the size of his head, and not inclined towards being eaten. It is honestly as fierce a battle as a snail can be engaged in, at least until he gives up and wanders away in search of easier prey. (I actually rather appreciate this, as that snail is one of three breeding size)
I will see if I can get a video of his hunting style at some point. It's really quite fascinating.
The shrimp are most interesting after the light goes out. All three are slowly working their way across the back wall of the tank carefully picking off bits of algae that a scrubber didn't touch. They also seem to be able to stick to anything, in this case, sheet glass.
The danios have an interesting temperament change with the lights out. During the lights on, they all scatter about the tank, generally having a good time and not schooling even remotely. Lights out, and they are all arranged around the biggest one, moving in perfect unison around the tank.
The ram is just fun. Little skittish for the moment, but quickly realizing she's the biggest thing in the tank, and enjoying the associated immunities.
The cories are all three determinedly trying to get underneath one of the fake plants. I must only assume there's some tasty morsel down there. It is odd behavior for cats, and I will be curious to see how it ends.
It's 5 minutes to midnight, but I blogged today. Acclimating fish kinda sucks. Especially with 14 fish across four tanks in two different buildings. Geh. I don't wanna do that again. This week at least.
I need a bigger tank.