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Discussion Starter · #1 ·
i have a tank set up with approximately 40 pounds of aragonite crushed coral and roughly 40 pounds of rock and was wondering what kinds of plants i should use to lower my nitrate levels. Maybe my test kit is defective but i do weekly water changes of at least 10 percent. Ammo nitrites are always 0 ph around 8.2 and a KH of 6. Water temp is 80-82 nitrate reading of about 20-30 ppm i test the water out of the tap and it tests 0 nitrates but after just a few minutes after a water change its back around 20-30 ppm it never gets any higher than that but am concerned about the long term affects of it on my fish
 

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20-30 isnt "high" id consider say 60 high but obviously lower is better. more plants will mean youll have to do less water changes to keep the nitrates low and fish love plants.

im guessing you have a african tank though so youll want plants that the fish wont eat. try starting with some java ferns and see how hey do.

youll be amazed at what some plants can do though, i have a good amount of plants in my 110gal and even though i have 5ppm out of my tap water my tank doesnt go above 10ppm.
 

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Assuming Africans and you don't want to add CO2 or be overly fussy, any of these will grow and shouldn’t attract too much fish attention:
- Ammania - Bonsai
- Anubias Nana Var Marbled, Nana, Bateri, Petite
- Bacopa caroliana
- Ceratopteris silaquosa
- Ceratopteris thalicroides
- Cryptocoryne Balansae, undulate wendtii Green or Tropica, Cryptocoryne x willisii
- Echinodorus Major (Marti), Ozelot Red, Paniculatus (Bleheri), Tenellus, acicularis
- Hydrocotyle verticillata, difformis, polysperma, Rosanervis
- Microsorium pteropus (Java Fern ), Windelov
- Riccia fluitans
- Vallisneria Gigantea, Spiralis, Torta
 

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Discussion Starter · #5 ·
The lighting is a 65 watt power compact 10000k/03 actinic its fit into the top of my canopy. The tank is a 29 gallon.The Light is affixed approximately 11 inches from the top of the tank and i had a group of 6 bicolor 500s i bought a few months back but all but 1 died within 48 hours of receiving them so its just the 1 cichlid and a few guppies that survived the cycle
 

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Well, with 1 cichlid and a few guppies, I think your nitrAtes are a bit high.
I agree with the larger partial water change advise of 30% (10g.) until you can get it down some.
You could do partial water changes a couple/three times a week for faster results.

The initial deaths of your 5 fish may have contributed to the nitrates.

A fast grower I have found that works with my Tangs. is watersprite (ceratopteris thalictroides).
It may help you with nitrates, but more/larger water changes would be my first advise, too.
:)
hth
Alicem
 
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