what size tank would be best ??

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AC Members
Dec 8, 2020
+1. Don't go crazy on your first tank, get a little experience first to establish how much you enjoy yourself. A 29 gallon may be perfect for what you want.

This is a little outside your original question, but as long as you're seeking advice on a tank, there are some additional things to consider. Something that hasn't been mentioned is the weight of the tank. A 29 gallon tank filled with nothing but water in it weighs around 280 pounds. A 55 gallon tank filled with nothing but water weighs in around 540 pounds. This is without the stand, no gravel, additional weight from filters, a canopy, lights, and whatever else I'm forgetting. Anyways, my point is that tanks weigh a lot. To get a ballpark figure of how much the tank will weigh when full and set up, I use 12 pounds per full gallon to account for the weight of the gravel after displacement of the water, all equipment, stand, etc. That brings a 29 gallon to 348 pounds. A 55 gallon starts around 660 pounds, etc. My number might be conservative, but I've never had a problem and IMO better safe than sorry.

So when you decide what size, ask yourself where you want to put the tank. Do I own my home or am I renting? Some landlords may not allow any tanks over a certain size to avoid water damage in the event of a leak. What floor do I want it on or how old is my house? Larger tanks (55+ gallons) in older homes may need to be placed against a load bearing wall, if not on on a concrete slab on the main floor or in the basement. Make sure you put it where you want it the first time. Full aquariums have to be emptied before they are moved, and that's a pain. What kind of flooring am I putting the tank on? The weight will drive the foot of a metal stand with four or six legs into hard wood floors, laminate flooring, and linoleum tiles over time, marring the surface. And a leak on a carpet is really fun to clean up and dry out.

Agree 100%
there’s also the cost, the bigger the tank the more it costs, more expensive stand, filters and heaters, more substrate more scaping the bump in water and electric bill and then stocking a 100 is different than stocking a smaller tank. Most successful keepers do at least 50% water changes once a week, I do it twice a week and doing a 50% WC on a 100 compared to a 29 or 40 is a huge difference in work and cost So the best advice IMO is if you only have room for a 20, go for it, but if you have room for a 29 or 40, go for one of those


AC Members
Mar 21, 2020
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Bigger is always better but for a first tank, a 100g is a big investment and commitment for a new hobby someone may not even stick with.. While you should almost always get as big as you can, a newbie is probably best starting of with a 40b IMO unless they’re absolutely sure this is the hobby for them
I do agree, and my comment was just a *joke* anyways 😂
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AC Members
Jan 13, 2021
Far West Texas
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I agree with FishAddict74. Get the largest tank you can afford. I am setting up a 20 tall. Why do that? Well, I had the space I had for it. I would love to have a 300 bowfront, but have no place to put it, Equipment for it is costly, and water changes would take about a day..or two. If I overspend, I usually regret it. So for my first ever planted tank, the 20 tall will not break my bank, just getting it set up. I can change my mind in the process, and don't have to pay back the loan against my mortgage.


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Jan 11, 2013
West Falls NY
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i ended up going with a 29 and have already spent $500 lmao ,, thank you everyone for the help !!!!:)

Too bad, because I just gave away a 29g w/ glass top and stand.. It lasted about an hour on the facehole fish group site.

Even loaded it up for the super cute mom in the minivan because that's what I do.