The-Wolf
Ex-LFS manager/ keeper of over 30 danio species
hi
over the last five days I have lost 5 fish
the first to go was a D.erythromicron
as this is a quite delicate fish, I checked the stats
and all was perfect. So I put it down to one of those things.
Second day lost a D.hikari.
hmm something not quite right here, so I re-checked the stats
and again nothing wrong.
I performed a 30% water change, checked filters etc, just to be sure.
Day 3 lost a T.hengeli. Not a happy camper.
checked stats and still nothing showing wrong.
performed another 30% water change.
Day 4 lost another D.hikari
again nothing wrong with water params
did water change and added melafix
this is really begining to annoy me now.
Today I lost a D.fegradei
water params are again fine.
now I'm peeved.
the thing is in this tank
I have proberbly the most sensative fish I've ever owned,
lampeye killies Aplocheilichthys normani, and they are absolutly fine.
all deaths showed no visable signs that anything was wrong, no marks scrapes blotches etc, nothing.
all fish are acting normal and feeding well, there is no visable strings of poo etc. All gill plates were healthy looking, not pale etc.
all test results are the same as below
NH3/NH4 0
NO2 0
NO3 40 (lessened with each water change; now stands at 10ppm)
pH 7.2
kH 5
gH 8
chlorine 0
O2 10ppm
do not have CO2 test kit but have airline running on tank so
CO2 should not be high if even present.
I'm at a loss here, please if you have any ideas let me know.
over the last five days I have lost 5 fish
the first to go was a D.erythromicron
as this is a quite delicate fish, I checked the stats
and all was perfect. So I put it down to one of those things.
Second day lost a D.hikari.
hmm something not quite right here, so I re-checked the stats
and again nothing wrong.
I performed a 30% water change, checked filters etc, just to be sure.
Day 3 lost a T.hengeli. Not a happy camper.
checked stats and still nothing showing wrong.
performed another 30% water change.
Day 4 lost another D.hikari
again nothing wrong with water params

did water change and added melafix
this is really begining to annoy me now.
Today I lost a D.fegradei
water params are again fine.
now I'm peeved.
the thing is in this tank
I have proberbly the most sensative fish I've ever owned,
lampeye killies Aplocheilichthys normani, and they are absolutly fine.
all deaths showed no visable signs that anything was wrong, no marks scrapes blotches etc, nothing.
all fish are acting normal and feeding well, there is no visable strings of poo etc. All gill plates were healthy looking, not pale etc.
all test results are the same as below
NH3/NH4 0
NO2 0
NO3 40 (lessened with each water change; now stands at 10ppm)
pH 7.2
kH 5
gH 8
chlorine 0
O2 10ppm
do not have CO2 test kit but have airline running on tank so
CO2 should not be high if even present.
I'm at a loss here, please if you have any ideas let me know.