I know you probably get loads of posts like this, but I can't put my finger on whats wrong. Im spending a fortune on fish but they keep dieing with forms of white mould/wool type round them. I know they arent over fed and I know its not overstocked. Its only the goldfish and carp that are dieing, my golden orfe and rudd seem fine. I bought a ammonia test kit and it stated the water as being fine. Are there any other tests I can do to find out such as ph? Im getting lots of blanket weed and from the postee a couple of post below says as soon as I take it out it comes back even more. Ive read up on blanket weed and found out it improves water quality and doesnt harm fish, but the ammount I get in 24 hours is unbelievable. I have a pump running 10 hrs a day with a filter and UV. The last time I changed the bulb was just under a year ago. Until a week ago I hardly had any plants in, but now Ive added eight deep water plants and looking to add more. Could this be the cause of unhealthy fish?. I lost one lot of fish so I did a 85% water change but the new lot are still diening of the same symptoms....
I came home from work and found these two dead. I bought a Nitrate test and the water stayed clear instead of going pink/purple. I also bought some fungus treatment. I'd like to know if the waters ok and I put new fish in, could the new fish get the disease from the remaining fish or will they be ok as the waters ok? Im not looking to add any just yet though.
I posted 3 images, no idea why they arent showing>>
Looks like flexibacter again to me, look at the head, erosion,slightly enlarged lower lip, the fins are showing finrot, but theres no other sign of nutrient drain, theres a mix of necrotic fluid and algae around the gills, and the lower fish has a post mortem septacaemic patch in the front midbody behind the gills.
Pond probably needs dosing with furan 2 to kill the infection of flexi and any fungi, and the pond itself needs more water disturbance, oxygenation and flow. Yup, it could have come in on the new plants, few shops of suppliers thing to QT plants, but equally the warm summer temps and lack of flow make it more likely to take hold. The pond is probably getting a bit too limpid and calm, for the fish , and the surface layer may be thickening, and with all the algae the nights might be 02 deficient making things worse. Considered trying a skimmer?
Perhaps a pic of the pond might show up why the conditions are proving deleterious to the fish, its entirely possible theres a design flaw that could be corrected or a piece of equipment that will make the pond friendlier to fish, and less so to algae, fungi and bacterial infections.