After reading this forum constantly for a few weeks (work productivity approaching zero), I pulled the trigger yesterday on a Deep Blue 3g for my office. I want to do an NPT, hopefully cycle it, get a rescue betta, etc. It gets here on the 22nd, along with a proper test kit.
Today, on craigslist, there are three bettas available from someone who has to rehome them. Each is in a 2.5g tank. Looks like no substrate, minimal plastic plants, no heater. $25 bucks for each tank, including the Betta. I would really love to take at least one of these guys home, and give him a good life. I will also end up with an extra tank to grow plants in, or whatever.
Given that these tanks don't have much in the way of decor or a filter, should I bother keeping the tank water? I could transport the Betta in something like a 12 cup container if some water would be helpful, or save all of it, or get rid of it when I drain the tank. I don't know anything about the seller's methods. I worry that without a proper test kit (it's on the way!), I could be saving water that is harmful. Or, throwing out water that might make the transition easier for him.
What say you, O Wise Keepers of The Betta?
Also, I am happy to buy whatever at the store to make the trip and situation better, so suggestions are welcome. A heater is obviously on the list for immediate purchase.