I've always been really big in to fish, but only started getting in to it as a serious hobby over the past 2 years. I wanted to have fish that had lots of personality and were entertaining to watch. I'm not a super big fan of mindless or schooling fish, with a few exceptions. My wife was very partial to Piranhas, but after seeing some puffers for sale at a LFS I decided to look in to them.
I currently have a 5 gallon tank with a couple of guppies, Scarlet Badis Dario Dario, and a small goby which I have suddenly forgotten the name of.
The other tank I have is a larger 20G long, with 2 filters an aqualand 50g filter and a marineland penguin 200 50g Filter, including a power head that cycles 110 gph for extra current. It sounds a little overboard I'm sure, but the reason for such heavy current and filtration are the residents of my tank. I currently have 3 SAPs, 1 DP, 2 fairly large mini or fiddler crabs, 2 kuhli loach, a Dwarf Cory catfish, numerous ghost shrimp and a Bambo shrimp.
I often receive questions from the LFS about how I can keep these things together. First, the tank is heavily planted, second, the fiddlers are actually larger than the SAP because of their age, third for some reason the SAPs have never developed a taste for ghost shrimp, and lastly because of my tank's rather unique setup in order to accommodate the crabs. Crabs of course have to have dry land. They've done exceptionally well in freshwater, even though it's widely recognized they're a brackish species, and have currently been in freshwater for almost a year and a half now. In the corner of my tank however, I have a small 2 gallon rectangular tank that sits upside down in one of the corners, in the water. It is braced in place in the tank at the top and has air pumped in to it, with sand, and drift wood coming up to create a small beach. The crabs are capable of going up in to the the mini beach for land.
Sorry for the size of that picture lol. It came out huge.
I've had some issues with the SAPs with glass surfing, since that seems to be a common issue with SAP owners, but since I added in the power head recently, it seems like they're chilling out some and I'm hoping that pattern continues since I just added it today.

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