Fishies Sick Again!

crix

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Follow up on previous request of floating goldfish (died), with new problems!

Tank size: 210 l/55 gal tank
pH: 6
ammonia: 0.5 ppm
nitrite: 0
nitrate:na
kH:na
gH:na
tank temp: 18 degrees celsius

Fish Symptoms : Black moore goldfish, sitting on the bottom of the tank, get very excited every once in a while tho and swims around for ages, sifting gravel, but then returns to 'sleep'. 1 Zebra danio and some snails died around 3 days ago.

Volume and Frequency of water changes: Daily, 20%

Chemical Additives or Media in your tank: Decholorinator, mineral balancer

Tank inhabitants: 1 black moore, 1 spotted goldie, 4 zebra danios, 3 australian natives (look like coldwater discus fish?) 1 snail, 2 big danios (unknown). All of these fish (except the moore) seem perfectly healthy. All swimming around fast and excited as per ususal.

Recent additions to your tank (living or decoration): na

Exposure to chemicals: Ich treatment 4 days before snails and danio die (ichonex,each ml contains .5mg copper, .6mg malachite green)

Heres a spreadsheet!

------------------------8-Feb--------8 Mar------22-Mar---------26-Mar-------------------27-Mar---28-Mar

---------------------New fishes--Comet dies--Ick treat---Snails / Zeb Danio die----------|-----------|----

PH---------------------7.5----------7------------- 7------------------ 6 ---------------------- 6----------6
Ammonia -------------- |-------------|---------------|-------------- 0.25------------------- 0.25-------0.5
Nitrate ----------------- |-------------|---------------|--------------- 0------------------------ 0----------0


I am currently changing the water daily, checking balances etc. I am unsure though whether the ich treatment has killed my bacteria causing a sudden spike, or perhaps the moore / snails / danio are all just indicators that my tank (2 months old) has not cycled properly yet, and ive only noticed this since the 26th since i got ammonia tester?

Also, how long does ich incubate for as im wondering whether the period between introducing the new fish the outbreak was an incubation period and the new fish have caused too much ammonia stress, or if the stress was from something else.

Ahhh! So much to sort out :) I just need to make sure none of my other fish are gunna die!

Thanks ahead of time.
 
Until you get water stats back into shape there isn't much to be done only water changes, but don't do large ones as it will take for ever.
Good luck.
 

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