My cory julii's have begun swimming to the surface of my tank and then floating at the top like they are dead and then suddenly swimming off like normal or dropping to the bottom and then swimming off. I've had them for 8 months and up to now they have been perfectly normal with some mad swimming at times up and down the glass together, but nothing like this - PLEASE can anyone help me. They are my favourite fish and I am extremely worried. It began with one of them doing this and now they are both at it.
The water values are fine. Just did a water change this weekend. I have a CO2 machine and constant up to the minute computer ph and temperature mersurments from the tank, which I calibrate regularly. The tank is 190 litres and we have 40 fish in total, all small - neons, king salmlers, red rio tetras, redchin panchax, 2 staarry bristlenose Ancistrus, 2 Kuhli loach, 2 albino Ancistrus. We had two butterfly cichlid, but they both died. They were introduced into the tank about 3 monts ago, developed ich and then just didn't cope with the stress. The other fish are all fine. I feed them a mix of food from flakes, mosquito worms, granules and algae pellets. We also put in cucumber for the bottom feeders now and then.
I really home that's enough information for someone out there to have an idea what is going wrong and what I might be able to do.
Thank you to anyone who can help
The water values are fine. Just did a water change this weekend. I have a CO2 machine and constant up to the minute computer ph and temperature mersurments from the tank, which I calibrate regularly. The tank is 190 litres and we have 40 fish in total, all small - neons, king salmlers, red rio tetras, redchin panchax, 2 staarry bristlenose Ancistrus, 2 Kuhli loach, 2 albino Ancistrus. We had two butterfly cichlid, but they both died. They were introduced into the tank about 3 monts ago, developed ich and then just didn't cope with the stress. The other fish are all fine. I feed them a mix of food from flakes, mosquito worms, granules and algae pellets. We also put in cucumber for the bottom feeders now and then.
I really home that's enough information for someone out there to have an idea what is going wrong and what I might be able to do.
Thank you to anyone who can help
