"Liisa Sarakontu" wrote in message
6...
"Reel McKoi" wrote in
:

Nitrate - 80

Dirty, dirty water! Although some fish can stand even 100 ppm nitrate,
anything over 50 is bad and it is best not to let it get higher than 20
ppm
(or 20 mg per liter, that's nearly the same).

Dirty water? The tank got a 90% water change shortly before I added the
fish. The gravel bed was vacuumed and the Diatom run to remove fine
particles. I can't stop feeding them, or stop them from passing waste nor
can I do daily water changes. There were several ottos, 2 clown plecos and
a reg pleco in the tank. Do you have a flow through system to keep nitrates
below 20mg per liter?

Is this a small tank? How many liters/gallons? Water changing routine? How
many fish you have there and what species?

The tank is a 55g set up for several years and contains live plants. Water
changes are every 2 weeks. See above. I recently added 8 Neons, 2 small
pearl graumies, 5 platys and the two corys (one died).
--

RM....
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
Zone 6. Middle TN USA
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