My Cory Is Dead, What Killed Him?

[Blubble37]

Tank size: 95 Litre
pH:7.6
ammonia:0ppm
nitrite:0ppm
nitrate:80ppm
kH:N/a
gH:N/a
tank temp:26

Fish Symptoms (include full description including lesion, color, location, fish behavior): Erm, Dead, was swimming slowly yesterday and fine the day before. Found under the bogwood.

Volume and Frequency of water changes:48 litres at least once a week

Chemical Additives or Media in your tank:Nil

Tank inhabitants:2x Pearl danio, 7x Wcmm, 3x adult platy, 2x platy fry, 2x molly, 3x dwarf corydora (was 4), 1x female betta splendens, 2x kuhli loach, 2x yamato shrimp

Recent additions to your tank (living or decoration):None in past 2 weeks

Exposure to chemicals: Nil

Digital photo (include if possible): Will upload

 

[Blubble37]

Anyone?

 

[Blubble37]

 

[FishNChimps]

I'm not experienced enough to offer advice, but I sympathise. That's a sad series of pictures. I have a cory and love its energetic swimming patterns.

 

[Kelly-Jo]

I'd say that you are slightly overstocked in my opinion, so this may not have helped.

 

[Blubble37]

i know what you mean but my ammonia an nitrite are 0 and have been since i got them. My nitrates never get above 100 either

 

[Kelly-Jo]

I meant more of a stress related way. If there are lots of fish in the tank all competing for food, space and hiding places. It can be a stressful experience for a little cory, who is by no means top of the pecking order. This won't be the sole problem but any stress the fish are under will make them more suseptable to disease and illness. It might just be the light in the photo or it may have happened after he died, but his fins look damaged/frayed. Did he have any noticeable fin rot before he died? As fin rot can move onto the body if left untreated and cause death.

 

[Blubble37]

It was the light, all fins were present and complete and he was in immaculate condition. except from the fact he was dead of course. Competition for food really isnt an issue as the ciries have loads of hiding spaces and food to forage for and i geive them an algae wafer and some pellets at least 3 times a week. The rest of my fish including the minnows and neons shaled with the cories and they ciertainly never got attacked. they also had an unimaginable number of nooks and crannies to tuck themselves into on a bad hair day.

Even the shrimp loved them

 

[Athena]

Not sure what type of cory that is as I don't recognise it - but cories in general don't do well in water with high nitrates - so the lower your nitrates the better with cories. It's better to keep your levels down to below 40ppm if you can - it may mean doing an extra water change during the week to achieve this as you quite heavily stocked.

Also, what type of substrate do you have? Is it gravel? If so, this could have caused some kind of bacterial infection in the cory with the constance rubbing against the hard gravel surface. Did this cory not have any barbels?

Athena

 

[Blubble37]

i have a smooth fine gravel substrate and his barbels were all there, although you cant see them in the pic.

I will do a w/c tonight but the nitrates in my tapwater are 50ppm. i'm about to test them again as that test was on the night he died (yesterday) and i have done a w/c since then.

I dont know his actual age but i have had him for about a month now and he was the most, adventurous lets say...

I added him in with the other cories and then waited a week before adding any more. as you are supposed to do.

 

[Blubble37]

Bonus Rex rgis , vos vadum forever exsisto held in meus pectus pectoris