Originally Posted by cherryblu
I'm guessing that since the room the tank will be in doesn't have a faucet anywhere near it this is going to be a challenge either way... filling originally won't be a problem because the temp. can be cold and will rise on its own and then with a heater (since there are no fish inhabitants yet) syphoning out water may not be a problem either. but getting warm water back in is going to be the problem. 25% of a 55 gallon tank is roughly 14 gallons. meaning I'd have to use 3-5 gallon bucket loads of warm water to refill everytime. Aren't you supposed to let the water sit for 24 hours first? or is this becoming a myth?
With larger tanks, the best apparatus for water changes is a hose we call a Python. That is the make. Aqueon also make one, not sure what they call it, but it works the same. It has a 25-foot initial hose, and you can buy 25-foot sections to lengthen it if needed. It needs to run from the tank to a water faucet that it can attach to, like a garden hose, so it needs threads. A laundry room sink should work, some kitchen sinks; but the new decorative faucets most now have will not. The valve on the faucet attachment can be switched to either create a siphon to drain water out of the tank, or to refill the tank straight from the tap.
You can use cold and hot water to refill the tank; I would not use just cold with fish. Squirt the conditioner in the tank prior to filling it. There is no reason to let water sit with a good conditioner, they work instantly to detoxify chlorine, chloramine, toxic metals; and some also manage ammonia, nitrite.
I have 7 tanks, three large ones are 70g, 90g and 115g. I change half the tank volume every week using the Python.
On an earlier issue, you have some problems with the fish selection, as someone mentioned. Tiger Barb should not be combined with sedate fish like gourami, this is asking for trouble. For a community tank, I would not recommend Tiger Barb. Clown loach are nice, but they get large--up to a foot, and need a group and a very large tank to grow into.