Over night I've lost 2 Dwarf Blue Rainbows. I know dwarf varieties are usully weaker, and if it was just one I wouldn't worry, but as I lost two together it seems logical to think they're connected.
They've been in the tank for several moths and both were males.
Aside from the dead fish having been nibbled, neither were mis-shaped in any obvious way.
There was some blackeing around their mouths, but whilst I'm pretty sure they weren't like that when they were alive I can't say for suere if that was a result of decomposition.
(There are 3 remaining females and one male.)
Eveything has seemed healthy recently.
Ammonia levels are zero (Well, zero-ish: the API test kit solution appears to be between 0 and the next colour on the chart, but test solutions are notoriously inacurate and fresh tap water produces almost exactly the same coloured test soloution.)
Nitrites are zero.
Nitrates are about 10ppm
I did a water change two days ago (20% rather than the usual 10%) and moved a couple of plants about 10 days ago, but those are the only recent changes.
Everything else looks normal.
Any thoughts?
They've been in the tank for several moths and both were males.
Aside from the dead fish having been nibbled, neither were mis-shaped in any obvious way.
There was some blackeing around their mouths, but whilst I'm pretty sure they weren't like that when they were alive I can't say for suere if that was a result of decomposition.
(There are 3 remaining females and one male.)
Eveything has seemed healthy recently.
Ammonia levels are zero (Well, zero-ish: the API test kit solution appears to be between 0 and the next colour on the chart, but test solutions are notoriously inacurate and fresh tap water produces almost exactly the same coloured test soloution.)
Nitrites are zero.
Nitrates are about 10ppm
I did a water change two days ago (20% rather than the usual 10%) and moved a couple of plants about 10 days ago, but those are the only recent changes.
Everything else looks normal.
Any thoughts?