2 Harlequins Dead In 24 Hours

[Jonty]

In the last 24 hours two of my Harlequin Rasbora have died. I found them upside down on the substrate, with no obvious bloating, wounds etc. which is leading my towards internal problems... ?

My water stats are:

Ammonia: 0.25ppm (water change day today)

Nitrite: 0ppm

Nitrate: 10ppm

PH: 8.2

Last week I added 4 corys... if this helps.

Thanks, Jonty

 

[Truck]

there shouldnt be a reading of ammonia, it was most probably the ammonia that killed the pair as it is more toxic with a higher PH. just keep up with the water changes.

any new additions?
any rotting plants?

 

[Jonty]

there shouldnt be a reading of ammonia, it was most probably the ammonia that killed the pair as it is more toxic with a higher PH. just keep up with the water changes.

any new additions?
any rotting plants?

That makes sense...

Added 4 corys a week ago

Only plants in there are mossballs, and they're fine

 

[Truck]

there shouldnt be a reading of ammonia, it was most probably the ammonia that killed the pair as it is more toxic with a higher PH. just keep up with the water changes.

any new additions?
any rotting plants?

That makes sense...

Added 4 corys a week ago

Only plants in there are mossballs, and they're fine

aye, it will be a mini cycle...you may be surprised to know, but moss balls are actually algae.