You're in luck, I actually have a 36 gallon bowfront set up as a DIY GloTank
I considered doing a write up on my findings for what worked/what didn't as far as lighting, fish, and decorations, but I wasn't really sure where the best place to put it was... Here's a summarized version....
Tank - Absolutely get a bigger tank. All of the GloFish types (barb, tetra, danio) require a 20 gallon long minimum since they are very active schooling fish. Do NOT buy the specially made GloTanks. As previously mentioned, they're torture tanks unless you use them for shrimp or a betta.
Lighting - Personal taste and budget, really. I've tried the following lighting setups:
1) Actinic bulb in the standard tank fixture
2) Regular bulb with a Marineland Hidden LED strip
3) Actinic bulb in the standard tank fixture + Marineland Hidden LED strip
4) Blacklight
Option #3 is my preference since you can toggle the LED strip to daylight or nighttime, effectively giving you 3 different lighting mode combinations (nightime LED only, nighttime LED + actinic, daytime LED + actinic). The fish don't care if the light is blue or regular, so if you want you can leave the actinic and nighttime mode on for maximum "glow". Blacklights give a truly alien glow, but far dimmer than the blue lighting options and require you to use 100% "Glow" marketed decor, while the blue lighting lets you use any flourescent decor for neat effects.
Fish: Anything GloFish obviously work, as do any solid white fish. Neon tetras also show moderately well depending on the lighting you chose. You can only see their stripe under the LED lighting only, but they do look nice under actinic + nightime LEDs or any combo of natural lighting + nighttime LEDs.
Here's a pic of what my tank looks like (well, as it was 10 months ago, stock and decor has changed slightly since and haven't taken new pics yet) as an example of how nice a DIY GloTank can look
As far as lighting timing goes, ever since I moved all my live plants into my sump, I've been leaving my actinic bulb on a timer and leaving my hidden LED strip on nighttime mode 24/7 (other than when I feel like toggling it to daytime during the day) to serve as a soft nightlight for the hallway it's in. There's still a distinct difference in day and night so the fish have their usual sleeping patterns, and everyone is just as healthy and normal acting as ever. In fact, I have a few nocturnal inhabitants in there that are far more active under this lighting than they ever were in my other tanks, so I actually get to see them out and foraging under this lighting scheme