nitrates - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 7 Old 08-07-2008, 01:42 AM Thread Starter
New Member

i just dont get it!!!! i cant keep my nitrates down for nothing....ive had the tank for 3 months and it was already set up previously when i bought it. they constantly stay at dangerous levels. treat it all the time and just cant get it to go down.. constant 20% water changes.... HHHEEEELLLPPP ME!!! not such a big deal but kinda same thing for the ph!
soada101 is offline  
Sponsored Links
post #2 of 7 Old 08-07-2008, 01:52 AM
onefish2fish's Avatar
what do you currently have in the tank?(fish,decorations,gravel etc.) what are you currently adding to the tank? ( chemicals, etc. ) what kind of filter?
onefish2fish is offline  
post #3 of 7 Old 08-07-2008, 02:31 AM
jeaninel's Avatar
Is this the 90 gallon in your tank blurb?

Have you tested your tap water for nitrates? You might need to do larger water changes than 20%. Also, do you gravel vac at each water change?

150 Gallon - Mostly American Cichlids
135 Gallon - Angelfish Community
75 Gallon - Odd couple (Polleni/Angelfish)
55 Gallon - African tank
20 Gallon Long - QT
10 Gallon - Empty
jeaninel is offline  
post #4 of 7 Old 08-08-2008, 01:53 AM Thread Starter
New Member

yes this is my 90 gallon tank... i have 5 fake plants... and some other im guessing plastic items... rena xp3 filter i cant remember the chemicals im putting in there i belive its prime something to help nitrates... no i havnt done gravel vac its a very tall tank and a pain to get that far down( id have to go swimming) lol its a corner tank so its higher....i havnt checked my tap but im gonna have to!!! any certain chemical i should try???
soada101 is offline  
post #5 of 7 Old 08-08-2008, 02:09 AM
New Member
SheyFirestar's Avatar
python makes some pretty decent length adapters for their units for cleaning i think will even do custom length ones if you order from there. without cleaning the bottom there is probably just a lot of fish waste down there messing with your nitrate levels. also definitely check your tap to make sure you dont have nitrates or high nitrates.
SheyFirestar is offline  
post #6 of 7 Old 08-08-2008, 02:09 AM
iamntbatman's Avatar
I would stay away from chemicals, as they often create more problems than they solve.

Have you checked for ammonia and nitrites, as well? If both are at zero, then your biological filter is probably just doing its job. How high exactly does your nitrate get? 20ppm and under is ideal. You have to start worrying if it gets above 40ppm. Water changes will always lower your nitrates, unless you've got ammonia/nitrite/nitrates coming out of your tap.

If you're overfeeding your fish, all that decaying fish food could be building up your nitrates. Really getting down into the gravel with that vac can be a big help, even if it means rolling up your sleeves and getting a ladder. Could there be any fish that has died somewhere in the tank that you aren't seeing? A dead animal in your tank is going to be a constant source of ammonia which, as long as you've got the biological filtration in place, build up your nitrates.

After you've checked for all of this stuff and there's still a problem, you might want to just do water changes more often or consider getting some fast-growing live plants, which turn nitrates into biomass. It would be tough picking a fast-grower that your silver dollars wouldn't just devour, but hornwort might work.

4 8 15 16 23 42
iamntbatman is offline  
post #7 of 7 Old 08-08-2008, 07:04 AM
okiemavis's Avatar
What are the water parameters of your tap water?
okiemavis is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
GH and nitrates lowco1 Beginner Freshwater Aquarium 3 03-15-2009 02:57 PM
No Nitrates. How is that possible? Yellamo Beginner Freshwater Aquarium 7 03-02-2009 08:01 AM
Nitrates? Little-Fizz Tropical Fish Diseases 3 09-24-2007 02:23 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome