The Puffer Forum

Hello,

does some one know what could it be?
The puffer doesn't eat at become very thin(
The other three in the tank are still ok...

You MUST answer ALL the questions above in red, so we can help diagnose the problem with your puffer.

1. Unfortunately, I don't know water parametres, my tests are on their way from ebay.
I used tap water, kept it for a couple of days before put in the tank.
2. Tank size is 100 liters, there are four puffers with three plants and ten snails.
3. Feeding them with frozen worms, once or twice a day, change water once a week about 30%.
Added to the tank a bit of salt, one spoon of salt for every 10 litres.
4. No changes has been made.
5. Aquarium is three weeks old. There is internal filter and airation.

This puffer wasn't so active as the others since I bougt them and his condition slowly is becoming worse.
I attached foto how it looks.

Pavel wrote:1. Unfortunately, I don't know water parametres, my tests are on their way from ebay.
I used tap water, kept it for a couple of days before put in the tank.
2. Tank size is 100 liters, there are four puffers with three plants and ten snails.
3. Feeding them with frozen worms, once or twice a day, change water once a week about 30%.
Added to the tank a bit of salt, one spoon of salt for every 10 litres.
4. No changes has been made.
5. Aquarium is three weeks old. There is internal filter and airation.

This puffer wasn't so active as the others since I bougt them and his condition slowly is becoming worse.
I attached foto how it looks.

Have you cycled the tank? If not change the water daily and buy an instant cycling product like tetra safe start as soon as you possibly can.

What kind of puffers? How big are they?
library/water-filtration/emergencycycle/

Thanks a lot for your help!
will do the cycling.
Tetraodon fluviatilis, size is about 3 sm.

Can you post a photo of your fish? You have to upload it here: www.photobucket.com & then link it to this page.
Your tank is way too small for even 1 fluviatilis. Are you sure about the ID?
Look here: ug.php/v/PufferPedia/Brackish/

Yea, it looks like I have Green Spotted Puffers

here is the link:
http://s1378.photobucket.com/user/Pavel ... o/library/

Hi there Sounds like you have a few issues that could be affecting your puffer, one of the biggest right now is the need to know the water parameters. If your tank has only been set up for three weeks and not previously cycled then it may be doing that right now. Puffers don't do well through a tank cycle, so this could be one issue. Also you should test the specific gravity of your water to make sure you have added enough salt. Do you have a heater and know the temperature of your tank? Fluctuating temperatures can also stress fish out. As Pufferpunk said you have too many puffers for the size tank you have - overcrowding can also stress fish. Even if they are small right now puffers generally don't like company. Last but not least there is the possibility that this puffer has internal parasites.

I hope your test kits come soon - does your local pet store offer water testing? you could always bring them a sample.

You have enough puffers there to require a minimum of 80 gallons, even at a small size--at least 120g when adults (if they make it that far). At this point, all you can do is 80% water changes 2x/day, until you upgrade the tank or reduce the population of fish. I'm afraid you will be losing all your fish.

Outside of the tank size which has been identified as a major issue without having you test kits you can't be sure your tank is cycled. Puffers in an uncycled tank will suffer severe gill damage which will impact them for life. Additionally you mentioned you are adding salt but not what type. It needs to be marine salt like instant ocean not aquarium salt. These adorable little guys need brackish or marine conditions to live a happy full life. The best of luck. Keep doing large daily water changes until you get an instant cycle product or your test kits and can identify that you tank is cycled.