Flubberlump
Fish Addict
Hi. I've noticed some holes appearing in my apisto cacatuoides' head over the last week or so. At first I thought they were the pores on his head but they have since increased in size and are also uneven in size. A bit of a recent background...about a month ago I treated the tank with melafix as my female caca appeared to have dropsy. Sadly she didn't make it. Incidentally, she'd only been in the tank a few weeks, and the day after I added her my male took a shine to her and she laid eggs in one of the caves. She ate them overnight. I wonder whether this may have caused her some stress? New tank and then eggs straight away? I tested the water parameters with a nutrafin kit and all was fine.
About 2 weeks later I noticed all of the fish gasping at the top, other than the bottom dwellers which were gasping at the bottom. Tested the water straight away...ammonia and nitrate. I did a 90% water change and repeated this for the next 3 days, testing the parameters before each change. By this time the ammonia was dropping to 0 within 24 hours and nitrite was halved. I performed 70% changes for the next 2 days, followed by 50% changes for the next 2. By this time ammonia and nitrite had been at 0 for a couple of days, and nitrate was at 10. All fish appeared back to normal. I've been keeping a close eye on the water parameters since then.
Tank size: 120ltr
pH: 7 - this had remained constant at 7.5 - 8 for the last 3 1/2 years (same pH as my tap water.) I have only noticed this drop within the last 2 weeks. I tested the tap water and this has dropped to 7 also, explaining the drop in tank pH.
Ammonia: 0
Nitrite: 0
Nitrate: 10
kH: unknown
gH: unknown
Temp: 23C - this has dropped slightly and I cannot seem to raise it, I'm buying a new heater.
Fish symptoms: holes on the head, varying in size, although they do seem to be symmetrical in location. Also one behind his left eye. Although they look white in the photos, they aren't, they are pits with no colour. His appetite is normal, he wolfs food as usual. He is much quieter than usual. He is usually very active and patrols the tank, also stopping to have a look at what's going and outside and will follow people (and cats!) as they walk past. For the last couple of weeks he has spent most of his time in a cave. He comes out at feeding time and very occasionally during the day. Today I noticed that my rummy noses were nipping at him when he came out and he quickly retreated to his cave. I have never seen this before.
Water changes: usually 50% every 2 weeks. This has been the case for the last 3 years. Since this trouble started though it has been 40 - 50% every week.
Additives: seachem prime with each water change, TNC+ after each water change for live plants. As above a course of melafix about a month ago.
Tank inhabitants: 10 rummynoses, 4 kuhlis, 5 corys, 4 lampeye killis, 1 glass bloodfin tetra (who killed the other glass bloodfins years ago so has remained on his own ever since).
Recent additions: female apisto who died of dropsy after a few weeks (this was before the crash)
Sorry about the lengthy post but there seem to be a lot of variables! the only other change is that I ran out of carbon dioxide for the live plants a couple of months ago so they aren't looking their best, but none have died to pollute the water. I know the tank crash may have contributed to the HITH (if that's what it is) but I don't know for certain what caused that, perhaps the melafix? The holes actually don't look as bad in the photo as they actually are.
Thanks in advance.
About 2 weeks later I noticed all of the fish gasping at the top, other than the bottom dwellers which were gasping at the bottom. Tested the water straight away...ammonia and nitrate. I did a 90% water change and repeated this for the next 3 days, testing the parameters before each change. By this time the ammonia was dropping to 0 within 24 hours and nitrite was halved. I performed 70% changes for the next 2 days, followed by 50% changes for the next 2. By this time ammonia and nitrite had been at 0 for a couple of days, and nitrate was at 10. All fish appeared back to normal. I've been keeping a close eye on the water parameters since then.
Tank size: 120ltr
pH: 7 - this had remained constant at 7.5 - 8 for the last 3 1/2 years (same pH as my tap water.) I have only noticed this drop within the last 2 weeks. I tested the tap water and this has dropped to 7 also, explaining the drop in tank pH.
Ammonia: 0
Nitrite: 0
Nitrate: 10
kH: unknown
gH: unknown
Temp: 23C - this has dropped slightly and I cannot seem to raise it, I'm buying a new heater.
Fish symptoms: holes on the head, varying in size, although they do seem to be symmetrical in location. Also one behind his left eye. Although they look white in the photos, they aren't, they are pits with no colour. His appetite is normal, he wolfs food as usual. He is much quieter than usual. He is usually very active and patrols the tank, also stopping to have a look at what's going and outside and will follow people (and cats!) as they walk past. For the last couple of weeks he has spent most of his time in a cave. He comes out at feeding time and very occasionally during the day. Today I noticed that my rummy noses were nipping at him when he came out and he quickly retreated to his cave. I have never seen this before.
Water changes: usually 50% every 2 weeks. This has been the case for the last 3 years. Since this trouble started though it has been 40 - 50% every week.
Additives: seachem prime with each water change, TNC+ after each water change for live plants. As above a course of melafix about a month ago.
Tank inhabitants: 10 rummynoses, 4 kuhlis, 5 corys, 4 lampeye killis, 1 glass bloodfin tetra (who killed the other glass bloodfins years ago so has remained on his own ever since).
Recent additions: female apisto who died of dropsy after a few weeks (this was before the crash)
Sorry about the lengthy post but there seem to be a lot of variables! the only other change is that I ran out of carbon dioxide for the live plants a couple of months ago so they aren't looking their best, but none have died to pollute the water. I know the tank crash may have contributed to the HITH (if that's what it is) but I don't know for certain what caused that, perhaps the melafix? The holes actually don't look as bad in the photo as they actually are.
Thanks in advance.