nitrates

I'm just discovering a tap water issue. Need advice. I'm calling in the cityu morning but it smells like algae. I started noticing in summer that bottles of water (which was through a brita filter) that were left out 24+ hours were stinky like algae and tasted bad after cleaning with vinegar...

I have a 55G tank with plants and a bunch of shrimp and fish. All my water values were always stable, but I had to put in some Nitrofurazone and API Pimafix (separately, about a week apart) to try to fix some cotton mouth on a few of my neon tetras. Now I constantly have high nitrate values...

Hi there, Quick question on water parameters. I've been reading higher than ideal levels of ammonia and nitrates and nitrites. Every week I do a 30-40% water change and the 2 tanks are well cycled around 9 months they've been set up. Question is, does keeping the ammonia levels low in turn...

Hi all. I've being doing a fishless cycle with my 19L tank. The cycle has been doing really well and recently I finally started having Nitrites and Nitrates showing up. I kept at it for a while as the Ammonia wasn't going down at all.y Nitrates ammonia and Nitrites were well over what the test...

I’ve been loosing some very nice fish due to high nitrates in one of my aquariums. I have been doing 30 percent water changes every day and I added a ton more aquatic plants and added more pothos. My nitrates are not going down it’s so frustrating! 160 ppm!!! I can’t do huge water changes due to...

So I have seen the general advice here to always be 'keep nitrates under 20ppm'. Why? What is this number based on? Out test kits show nitrates as just NO3- ions, the studies below use nitrate nitrogen, to convert their numbers to ours multiply by 4.43...

Hi, I have a 60 liter tank quite a few live plants a eheim classic 250 and a seachem tidal 35. My nitrates have slightly spiked to about 40ppm and have done lots of water changes but I think my tap water has naturally high nitrates can't get rodi machines or water. So was thinking about Nitra...

Good day. I have this brown stuff- algae? Debris? on most of my plants and inside my canister filter and tubing. Help! What is it and what can I do about it? I have .... 20 gallon long tank with penn plax 500 canister filter with foam and sponge filter media. this week added fluval prefilter...

Hi there. Question: I’ve been fishless cycling a new 10g tank using bacteria from a bottle for about 5 weeks and why don’t I have any nitrItes yet? I’ve been feeding the tank with 10% ammonia to try to maintain 2ppm. The ammonia has been slowly dropping again and again. I have seen an increase...

Hey guys! So I am brand new to all of this! I had some Betta fish when I was younger but honestly was too young to properly take care of them. Durning the quarantine, I decided to buy one. When I did, I set up the tank how most people would think it is okay to set up a Betta tank because this...

I set up my 30g tank 3 weeks ago. I was advised to use a hardy fish as an ammonia source so I got a young bn pleco 12 days later. Although I learned afterwards that it's a bit controversial he seems to be well with good energy and appetite. Using a Sera liquid test kit 5 days ago the results...

Hey guys: Been reading for years, this is my first post. I've been in and out of the hobby for 30+ years, so I'm not a newbie. But there's always something around the corner that makes me feel like one! I have a 29 gallon heavily stocked freshwater tank with no live plants. Filter is a DIY...

Hi I have had a little fish tank up and running for about 8 months now-so am not a complete newbie...all is happy and Well all fish alive still-(I have read a lot of articles on here in that time) however my issue lies with my 180L tank. I bought this baby second hand and it’s had a few...

I have decided to start keeping fish. I have set up my tank with real plants and used Tapsafe when I added the water. I put in flints from the garden which I washed thoroughly having checked that they are suitable for tropical fresh water tanks. The nitrate and nitrite readings are really high...

Hi all,   I am moving my African cichlids to a new tank in a new city. I have the new tank all set up and I brought one of the filters from the original tank and put it on the new tank. The rocks and substrate are all new though so I anticipated having to cycle the tank again from scratch.  ...

It's been a week now that I battle with high nitrates levels in my two tanks. I know that my bigger tank is a little overstocked, so I do regulars water tests. I did everything I could think of : clean the filters, vacuum my sand, daily water changes. And still my nitrates levels were over 50...

Recently I tested my relatively new 29g brackish aquarium's water, and it turns out my nitrites and nitrates are both very high.   My tank's water is reading as: 7.8 PH, about 180 KH, 0 chlorine, Nitrites I think around 7 or 8, the color is brighter than my chart so it may be higher, and about...

I have a tank with 2 powder blue dwarf gouramis in it. This morining, I found one of them laying on his side on the bottom of the tank, pale and breathing heavily. There is no sign of bloating or parasites. A water test revealed sky-high nitrate levels, which most likely are the result of...

If it matters, I'm talking about tank-bred red turquoise discus.   What is the maximum nitrate level they can tolerate before I need to do a water change?

Hi everyone,   I've joined this forum as I've completely hit a brick wall as to where I have went wrong with my fishless cycle.   At the start of the year I bought a fish tank as I wanted to get an axolotl. I read online about fishless cycles (as a complete beginner to fish keeping) and so I...