With all due respect to Avalon, I couldn't disagree more. My 55 gallon is a pain in the butt to maintain. Water changes require a large syphon, my kitchen trash can, and repeated fillings of a bucket from my sink. And my ten gallon planted tetra tank is the easiest thing I have to maintain, next to my vases, which are so small I'd be given the death penalty in Finland and other countries that regulate aquatic pet life.
I would recommend a ten gallon tank to a beginner any day. A 20 or a 29 gallon if they can afford it, but a 55 gallon? Come on. With stand, that's the size of a bloody love seat or a small couch. A lot of real estate to take up in a room, not to mention the volume of water. I think it's just stupid to start out with a 55 gallon or larger tank if you're new to the hobby. Larger tanks are great, I'm not disputing that, and I love my 55 gallon and the inhabitants, but my smaller tanks are just so much easier to maintain.
A lot cheaper too, equipment, lights, and everything.
Here's the maintenance for my ten gallon:
Twice a week a 1 gallon water change (approximate). Takes less than one minute. What I do is use a gallon plastic water jug with the top cut off, scoop out as much water as it can hold, give the water to my wife to fertilize her plants, then fill it in the sink and add dechlorinator. I then drop in a bit of Flourish Excel for my plants, and depending on when it's due, add other liquid fertilizer as well.
My vases take a little bit more time, but no less than three minutes. What I do is use the same plastic jug with a plastic cup. I scoop out a cup of water from each vase, pour it in the jug, then refill the jug with dechlor'ed water and use the cup to fill the vases back up (I have three 1.5 or 1.75 gallon vases, never bothered to check the exact volume).
No filtration on the vases other than daily or every other day water changes (you could keep a vase like this at your work desk easily, long as you keep appropriate fish, if you have a cubicle or desk job).
With the ten gallon, I use the biowheel mini filter. Very easy to clean whenever it gets gummy, takes no more than half an hour.
Now the 55 gallon...
I don't quite understand this oft-parroted mentality of having a smaller volume of water yields a smaller chance of error you have. Yes, chemically and biologically, this is true. But no matter how insanely large our home aquarium systems are, they are nothing to even a small body of natural water, and in my opinion and experience, the difference between a ten gallon and a 29 gallon are negligible.
Everything depends on the
variables of your tank. Size and surface volume is a variable, but it's not the
holy grail of fish keeping.
Here are just a few possible variables to keep in mind...
Larger tanks are simply a much larger investment. More space, more weight on your floor, and much more to lose if it cracks or fractures. In addition to this, they cost a lot more, and that doesn't even include the equipment, which is much more expensive. I keep two HOB filters on my 55 gallon. With two filters, you have twice the possibility of having a problem to identify, not to mention the increased amount of time it takes to clean those huge bulky things every 4-6 months when all parts of them gum up (intake tube, interior filter, and my favorite, the impellor housing).
Larger tanks, in my experience, give one the misguided notion of stocking more. This yields more work and maintenance. With smaller tanks, you know your limits, and for ten gallons, you don't get a fish that grows more than 2 inches.
If you're a short person, like me, then it can be difficult to clean the tank of algae at the bottom or gravel vac, unless you have proper tools for a huge tank. Cleaning a larger tank of algae requires more effort, which means larger tanks are
not easier to take care of, necessarily. Also draining the tank in the instance of an emergency will take much longer and require more effort than a smaller tank.
Is your floor level? What you could get away with with a ten gallon you couldn't with a 55 gallon. One of my first posts on MFT detailed my battle with getting my 55 gallon set up. Here's
that story...
How's your lighting? If you're not planning on keeping live plants, then you're fine with the standard fluorescent bulbs. However, if you are planning on live plants, get ready for major expenses or some dedicated DIY work in constructing proper lights for a tank that deep.
These issues all become minor if you start with a ten gallon tank. For instance, live plants can become almost simple! Purchase a cheap incandescent hood and replace the bulbs with proper K-rated screw-in compact fluorescents, and you can keep nearly any plant. I have this set up and I can keep any plant that can live with 2.5 watts per gallon. I'm no good at electrical DIY or overdriving bulbs, so I'd never even consider having a planted large tank unless I came into a lot of money.
I stick to the military philosophy of keeping it simple. The simpler the plan, the less that can go wrong. With a larger tank, so much more can go wrong, and in my experience, it can be really tough figuring it out for all the variables involved. Not to mention, you have a 600 pound paper weight in your room that's not easily moved!
I'm not bashing large tanks. I love them. However, I am a dedicated hobbyist, and I would
never recommend a 55 gallon tank to the beginner. Start out small and see if you like the hobby. And if you are ready to take the plunge with a large tank, is your spouse ready? Or your mom or dad?
Are you ready for the commitments of a large tank?
These are all questions and factors you need to think about before you instantly subscribe to the notion that
bigger is better.
I apologize to Avalon for posting this before he could post all of his sticky, but since so many replied, I felt inclined.