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2.5 gallon stocking

This is a discussion on 2.5 gallon stocking within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> 17% wont work. WAY too little pwc. You see, the problem with putting a fish that is rated for a larger tank in a ...

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Old 12-28-2012, 10:15 PM   #21
 
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17% wont work. WAY too little pwc. You see, the problem with putting a fish that is rated for a larger tank in a smaller one is that you MUST do massive pwc to keep it healthy. A Betta (who can survive in a 2.5gal) actually needs a total of about 120-200% pwc a week! This of corse means daily pwc and high risk of Amonia swings and such. You wont be able to take an off day from this. I would say do a minimum of 50% pwc 3x a week (with one being a sand vac) and lots of water testing to make sure you can do an emergancy pwc if needed.
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Old 12-28-2012, 10:16 PM   #22
 
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17% wont work. WAY too little pwc. You see, the problem with putting a fish that is rated for a larger tank in a smaller one is that you MUST do massive pwc to keep it healthy. A Betta (who can survive in a 2.5gal) actually needs a total of about 120-200% pwc a week! This of corse means daily pwc and high risk of Amonia swings and such. You can imagine the work needed with one that is rated for a larger tank!

You wont be able to take an off day from this. I would say do a minimum of 50% pwc 3x a week (with one being a sand vac) and lots of water testing to make sure you can do an emergancy pwc if needed.
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Old 12-28-2012, 10:20 PM   #23
 
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I really do recommend a bigger tank if you want a puffer fish... perhaps 5 or 10 gallons with a heater and very strong filter.

If you are looking to stock a 2.5, I highly recommend a male betta or wild/fancy/endler guppies.
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Old 12-28-2012, 10:31 PM   #24
 
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Originally Posted by PhilipPhish View Post
I really do recommend a bigger tank if you want a puffer fish... perhaps 5 or 10 gallons with a heater and very strong filter.

If you are looking to stock a 2.5, I highly recommend a male betta or wild/fancy/endler guppies.
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Don't get too strong a filter. They'll get sucked up. I have an Aquaclear 20 on a 10 gallon tank, here you can see the sponge I put on the water intake to stop them from getting vacuumed. (Aquaclear's have adjustable water flow and mine is not running full blast)


For the record, with 2 in a 10 gallon, I just do my usual 25% water change once a week when I do my other tanks, and I have 0 nitrites, 0 ammonia, 5 nitrates. They are messy eaters, but if you feed them one worm at a time, and don't overfeed, they're not that bad. I also have a lot of plants in this tank, which helps.

As has been mentioned, however, keeping one in a 2.5 will require more water changes. But I would think 30% twice a week would be plenty. (I don't know for sure, never kept anything in a tank that small).

I keep a Betta in a 5 gallon and 25% water changes once a week keeps the water at the same parameters listed above. A single DP does not need a 10 gallon tank, by any means, but a 5 would be infinitely better than a 2.5 (well, maybe not infinitely, but certainly twice as good, lol)

People keep pushing Bettas because they're the best fish for your size tank. I'm not a huge fan, but I have one because I had a 5 gallon and not much else to do with it. I actually like the darn thing now.



Mary Poppins, our male Betta. My son has gender issues.
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Last edited by Canadian Fish; 12-28-2012 at 10:46 PM..
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Old 12-29-2012, 12:03 PM   #25
 
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Well, 30% in a 10gal is 3 gallons and you said you did it 2x a week. I was just working up the equivalant of that much pwc in a 2.5 if I was to estimate that they dirty up about the same volume of water weekly. What do you think?
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Old 12-29-2012, 12:23 PM   #26
 
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Well, 30% in a 10gal is 3 gallons and you said you did it 2x a week. I was just working up the equivalant of that much pwc in a 2.5 if I was to estimate that they dirty up about the same volume of water weekly. What do you think?
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No no, I said she might be ok doing it twice a week in that small tank. I only do it once a week. I have no interest in any tank so small that it requires two water changes a week. I am WAY too lazy.

Mind you, a 30% water change in a 2.5 gallon tank probably wouldn't take very long, lol. And if she wanted to do 50% instead, it wouldn't be much more.
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Old 12-29-2012, 12:36 PM   #27
 
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I'm the exact opposite! I do more than I need to because I enjoy it! 20% 3x a week in my 10gal. Their tank stays cleaner than my bedroom!
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Old 12-29-2012, 01:34 PM   #28
 
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I'm the exact opposite! I do more than I need to because I enjoy it! 20% 3x a week in my 10gal. Their tank stays cleaner than my bedroom!
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Our tanks are cleaner than the rest of our house, but that is more a sad commentary on the state of our house, than on our tanks. In our defense, we have a four year old. Though it's more the lazy thing.

I wish I could say if I had less tanks I would be more inclined to do more water changes, but that would be a lie. When we only had the one tank, we still only did water changes once a week.

I wish I had your motivation, and actually enjoyed water changes. I'm always worried the filters won't restart after I turn them off, or the Silver Dollars will get stressed (every time) or the rope fish will get out, etc. I'm so paranoid (and did I mention lazy?).

Sorry to get off topic OP. Wife is asleep after working all night and I am bored. I should do water changes. NOT. It's a 2 person job now. The sink we hook the python to is on a different floor than the fish tanks.
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Old 12-29-2012, 02:24 PM   #29
 
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I found that because I do so many, my fish almost expect it. And, I do several small ones instead of one big one which I think is less stressful on them.
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Old 05-13-2013, 07:27 AM   #30
 
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hey guys! I'm back to check in...anybody curoius to know what this tank ended up as?
well, I did the dwarf puffer for about 3 weeks and after having an unconquerable algae explosion, i moved her to the 10g where she gets along great with the other fishes. After pilingup heaps of info, I decided to dive into the sw side of the hobby. some peoplesuggested that a 2.5 g might not be the best size for a reefing newbie to start outwith, but I thought...what the heck! I've now had my 2.5g pico reef up and running with many corals and inverts for over 3 months. Allthough it is a ton of work, I love it sooo much!
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