[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[APD] Lost an oto, not sure why.
I'm asking this in a plant group since many of you keep oto's ,
probably more per tank than general aquarists do. A post in another
group was unfruitful.
My first fish died in a 1 month old 75 long community, planted tank
- an Otocinclus affinis, the bigger Peruvian variety. They had
been in about 3 weeks and I have about 1" fish / gal which had been
doing okay at first. Other fish are 7 2-3" young discus, 3 SAE's, 5
clown loaches, 3 amano shrimp, 3 adult broken line tetra- Hemmigramus
ulreyi, 6 very young panda corys and a 6" Botia longiventralis.
I checked the water chemistry with my Nutrafin/Hagen dropper kits and
don't see anything too bad (to my newbie eyes after much reading):
p H 7.00
NO2 0.3 ppm ? (Hagen kit really doesn't work on N)
NO3 5-10 ppm?
Fe chelated 0.1 ppm? Maybe 0.0
PO4 4 ppm
temp 76.1= 24.5 C
I took my water sample over to Albany Aquarium (perhaps the best LFS
in SF Bay Area) about 1 week ago and they measured NO2 = 5 ppm and
NO3 = 0 ppm on a different kit when I was showing 0.8 on the Hagen
kit. It is purple, which is not really the expected Hagen color.
I've since read online the Hagen's No2 & NO3 kits are very poor.
After that I added some Aquatech ProBiotic Cleaner Plus to the filter
intake. Which store owner said this was the only bacteria product he
thought was really alive, since it comes from Yosemite to him every
few months or so. He suggested that to avoid a NO2 spike building. It
had been 9 days since I added it.
The only dosing I am doing now is 8 ml of TMG daily. My substrate is
1/2 Profile Aquatic Plant Soil, 1/2 Turface Proleague (kicked up a
notch with Diamond Black Humic acids and pyrosol) with about 7 lbs of
worm castings which explains why my N and P are high. The worm
castings raise the hardness from 5.6 to 7.8 dkH in 5 days of leaching
due to egg shells in them, I am trying to minimize what I dose.
Plants pearl like crazy (4 w/g compact fluorescents) and are not
turning yellow on tips anymore now that I kicked up the TMG and the
Alternanthera reineckii is the proper purple color and others I
can't id are rust/ red color. I have been doing 50% water changes
each 5 days, I found it on morning of 5th day.
The one thing I think maybe happened was that it starved? I noticed
that none of the other 4 otos had fat bellies. I stopped adding New
Life spectrum wafers about 4-5 days before it died, since I added
young discus and with the frozen blood worms and live brine shrimp I
was concerned about over feeding. They otos previously been eating
the wafers and scanning of the plants for algae which are present.
The tank is pretty clean overall, there are algae growing on the
walls of the tank and now I am getting long wavy brown hair like
algae, but maybe the algae are not what the otos needed to thrive.
Of the other 4 otos, 2 now have fat bellies and 2 do not after adding
2 wafers in yesterday.
Michael O. Skidmore
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com