Hi all, hope you're well!
A little tank update:
Excuse the mulm on the sand, I'm in the midst of a quite intensive substrate clean!
THE FISHY BIT
MY PROBLEMATIC FAVES
Noticed some fin rot and a white fungal patina on 2 of my older lady pygmy corydoras, so I've dosed the tank with esha 2000 and done a big water change and substrate clean today. I'm not entirely sure what prompted the decline, but I think it could be a combination of increased cory friskiness and my lackluster approach to substrate maintenance, combined with no water changes (only top ups) whilst I was away on holiday. It's only the corys that seem effected, making me think it's something to do with the bottom. Luckily the ladies are looking a hell of a lot better post esha!
A POSSIBLE LOSS, AND A QUESTION
Having said that, I think I may have lost a green neon. There's no chance I'll find the body (if it's not been eaten) - I bought them fully grown about 1.5 years ago, so it's possible it was just old age. I'm really not certain, but I'll keep an eye out for any remnants. It's also possible it's just hiding from me!
I think I have 4 left - here's the question. Do I get more, and bulk up the shoal, or do I let these 4 live out their lives together without additions? I do like them a lot, but I think they are the main culprits in the corydoras egg disappearance cases (I've literally watched them spawn camp the females,in every sense of the word).
@dw1305 also has some beautiful, spare dicrossus filamentosus that I'm eyeing up if all goes well. What d'you reckon; add more tetras, or wait for the dicrossus addition?
BREEDING THE UNBREEDABLE?
In bizarre news, I'm slightly perplexed at the sundadanio axelrodi. I know they're considered basically impossible to breed in the hobby, and I assumed as such in my tank. They're my hardiest fish by far, and have been showing breeding behaviour and intense colouring for at least the last 9 months. Today I've noticed that one of the sundadanio's, a male, is about 1/2 the size of the other ones. Could it be a parasite, a skinnier fella, or is this one
new? If I didn't know how difficult they are to breed I'd assume it's more juvenile, but I honestly don't know if that's possible and I can't believe I wouldn't have noticed it until it just appeared. Pic attached:

It's quite hard to get comparison photos but I will try and get some better ones. The man in question is the tiddly one at the front in both pics. If they have bred, I've absolutely no idea how. I'm guessing they haven't, I am just perplexed. Any ideas, or concerns I should have re the skinny fella?
THE PLANTY BIT
Really enjoying trailing plants growing up from the water line. I've also got some male shield ferns (I think, I can't quite remember) that have grown from spores from the first moss I collected all that time ago. Tradescantia looks lush, creeping fig is creeping, and it's generally just a good time. Thanks all for the plant advice
🙂
Still not entirely sure what to do with the giant peace lily. Think I might just
@AlecF it and chuck it in the stairwell a la edinburgh tenements. I've been slowly moving plants out there, and no one's complained
so far...
Thanks as always for all your help and advice all
🙂