a fish dies every day help

[corrina3]

hello new here but need help have a 10,000 lt tank with a canster filter its been running for round 4 weeks only have around 11 fish in it , iv run tests all are ok but every day I wake to find that a healthy fish has died over night , I cant work out why , please help

 

[corrina3]

I have mollys guppies angles

 

[jpappy789]

I apologize for the string of questions, but we need a lot more info to make any attempt at a diagnosis.

1) What are your parameters (ammonia, nitrite, nitrate plus any other info)? What test kit do you use?

2) Was the tank cycled prior to adding fish? What is your full stock list?

3) How did you acclimate the fish? Do you quarantine? Are they all from the same store?

4) What is the exact filter you are using? What is your normal maintenance routine?

5) What do you feed? Are the fish still eating? Any unusual behavior or symptoms?

Is your tank really 10,000 liters? That works out to over 2,000 US gallons which is a VERY large tank for only 11 community fish...

 

[corrina3]

test kits are ... aquasonic ammonia kit, api nitrate kit ,petix nitrite kit , aqua 1 ph kit .ammonia was 0ppm ph sitting on 7.0 and 7.3 . all the dead fish didn't show they were sick at all , just woke up and found them dead on bottom each day or so lost about 20 fish over the last 2 weeks , tank has been running for 4 weeks but we did move filter over from old tank and plants river rocks and gravel , the canster filter is a aqua aquarium 2200lph water sponge uv light filter inside I have 3 sponges on bottom and ,seachem matrix media and ceramic rings and bag carbin in the other 3 , fish are all eating well feed the 2 times a day on purina totalcare tropical flakes . have 2 heaters in tank temp is 22 to 24 . fish are as follows : 2 guppies small ,angel 1 small ,gouramis 1 small , rainbows 6 med , rainbow shark small 1, black neon tetras 2, red eye tetras 6 . changed 20% water every 2 weeks [h=1] angleImage not available Photos not available for this variation <style type="text/css">.vi-hide-mImgThr {display: none;}</style><img id="icImg" class="img img500" itemprop="image" src="http://www.i-wholesale.com.au/ebay_lisitng_pic/AQ-UVF-3328/AQ-UVF-3328-00.jpg" style="" clk="" />[/h]
Click to view larger image
[TABLE="class: en_img_tbl"]
[TR]
[TD]

[/TD]
[/TR]
[/TABLE]

[TD="width: 100%, align: center"]
[/TD]

[h=1][/h]

 

[corrina3]

and I got fish from 3 shops

 

[corrina3]

oh and 3 swordstails and 3 phatys

 

[corrina3]

 

[tanker]

Is that tank in your home??

 

[Glabe]

holy moley!!! can little fish get decompression sickness in that monster???

 

[corrina3]

yes its in my house