Newbie

BirminghamTransport

Member
Hi, at the age of 46 i have finally got myself my 1st tropical aquarium! A used 190 litre Juwel Trigon. Myself and my 2 kids are very excited!
After 3 weeks of getting it all set up and ready, we introduced 6 Cardinal Tetras yesterday, 5 are doing absolutely fine but the smallest one is pretty much keeping himself to himself at the top corner of the tank. Is he just settling in and a bit scared perhaps. He appears to be fine otherwise and not showing any signs of distress. I thank you in advance for any help? I expect to be on this forum quite a lot!!
 

Crimson_687

Member
Hey there and welcome to the forum! You’ll find lots of information here, as well as meet many different fish keepers.

It is possible your smallest tetra is still settling in, but it’s important to figure out why this fish is stressed or eliminate possibility the fish is sick.

What are your parameters? Very important. Is this fish being bullied? In smaller schools, it is not uncommon for the smallest to be bullied and you may want to add more to the school to diffuse aggression, or it could be another stressor making your fish agitated and more aggressive. What is your tank temperature? Cardinal tetras are tropical fish and like temperatures 76-82F. Is your temperature constant? If your temperature drops or raises suddenly, it will stress your fish. A constant temperature is very important. Is the fish in question eating? Since these fish are new they probably won’t eat for a few days as they settle in, but lack of appetite is a huge sign of stress or disease. What size is your tank? Very important. If a tank is too small, your fish may feel stressed or aggressive. What is your setup? Tanks should include plenty of cover and hiding spaces so a fish can seek comfort and feel safe. How was the fish in question upon purchase? A fish may have been shipped while being weak or sick, and this period of high-stress makes them prone to disease and health problems. It takes a real toll on them.

A picture would help a lot to figure out if there are any physical signs of disease with this fish. If you notice irregular swimming, swelling, flashing, white/clear poo, discoloration, itching, erratic behavior /irritations, shedding slime, wasting, sunken stomach, abnormal growth, heavy/rapid breathing, or gasping, these can all be signs of sickness.
 
  • Thread Starter

BirminghamTransport

Member
Crimson_687 said:
Hey there and welcome to the forum! You’ll find lots of information here, as well as meet many different fish keepers.

It is possible your smallest tetra is still settling in, but it’s important to figure out why this fish is stressed or eliminate possibility the fish is sick.

What are your parameters? Very important. Is this fish being bullied? In smaller schools, it is not uncommon for the smallest to be bullied and you may want to add more to the school to diffuse aggression, or it could be another stressor making your fish agitated and more aggressive. What is your tank temperature? Cardinal tetras are tropical fish and like temperatures 76-82F. Is your temperature constant? If your temperature drops or raises suddenly, it will stress your fish. A constant temperature is very important. Is the fish in question eating? Since these fish are new they probably won’t eat for a few days as they settle in, but lack of appetite is a huge sign of stress or disease. What size is your tank? Very important. If a tank is too small, your fish may feel stressed or aggressive. What is your setup? Tanks should include plenty of cover and hiding spaces so a fish can seek comfort and feel safe. How was the fish in question upon purchase? A fish may have been shipped while being weak or sick, and this period of high-stress makes them prone to disease and health problems. It takes a real toll on them.

A picture would help a lot to figure out if there are any physical signs of disease with this fish. If you notice irregular swimming, swelling, flashing, white/clear poo, discoloration, itching, erratic behavior /irritations, shedding slime, wasting, sunken stomach, abnormal growth, heavy/rapid breathing, or gasping, these can all be signs of sickness.
Hi. Thanks for replying. It’s a 190 litre aquarium. The other 5 aren’t bullying him or anything like that. Temperature is set at 25 and we bought them from Pets at Home which is a 5 minute walk from my house. A short while ago he dropped to the bottom and lay there upside down for a couple of minutes then has been back to the top swimming normally for 20 mins. These are the only fish in it. Bizarre!!
Crimson_687 said:
Hey there and welcome to the forum! You’ll find lots of information here, as well as meet many different fish keepers.

It is possible your smallest tetra is still settling in, but it’s important to figure out why this fish is stressed or eliminate possibility the fish is sick.

What are your parameters? Very important. Is this fish being bullied? In smaller schools, it is not uncommon for the smallest to be bullied and you may want to add more to the school to diffuse aggression, or it could be another stressor making your fish agitated and more aggressive. What is your tank temperature? Cardinal tetras are tropical fish and like temperatures 76-82F. Is your temperature constant? If your temperature drops or raises suddenly, it will stress your fish. A constant temperature is very important. Is the fish in question eating? Since these fish are new they probably won’t eat for a few days as they settle in, but lack of appetite is a huge sign of stress or disease. What size is your tank? Very important. If a tank is too small, your fish may feel stressed or aggressive. What is your setup? Tanks should include plenty of cover and hiding spaces so a fish can seek comfort and feel safe. How was the fish in question upon purchase? A fish may have been shipped while being weak or sick, and this period of high-stress makes them prone to disease and health problems. It takes a real toll on them.

A picture would help a lot to figure out if there are any physical signs of disease with this fish. If you notice irregular swimming, swelling, flashing, white/clear poo, discoloration, itching, erratic behavior /irritations, shedding slime, wasting, sunken stomach, abnormal growth, heavy/rapid breathing, or gasping, these can all be signs of sickness.
 

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