Hi all. Pretty new to these forums so hope someone can help me. I currently own a rena 4ft tank (265l) it has been cycling for 4 weeks. I have checked the water parameters last night and tonight and so far the pph is 7.5 ammonia is 0 but nitrite is just over 1.6mg and nitrate is nearly 110mg how can I lower these, as I have two fish put by for collection on saturday. If if help's they are a leopard pleco and a frontosa. All help appreciated.
Water Parameters
- Thread starter rena10
- Start date
bassbonediva
Fish Fanatic
Water changes will help lower your nitrites. Your nitrates should be between 5-20ppm (not sure what that translates into for milligrams, though), depending on how well-planted your tank is.
bassbonediva
Fish Fanatic
Yeah, I do about 10-15% water changes on my tanks. I'd probably do bigger ones, but I'm kind of on the injured list right now (tore my rotator cuff at work), so lifting 5 gallon buckets full of water is not the most fun experience. That being said, I have seven tanks I do water changes on, so that's a lot of buckets. 
However, since your tank isn't fully cycled (mine are), I would suggest at least 30-40%, or even bigger, depending on how quickly you want your tank to cycle. 50% water changes won't do any harm, and will actually help your cycle finish up.
However, since your tank isn't fully cycled (mine are), I would suggest at least 30-40%, or even bigger, depending on how quickly you want your tank to cycle. 50% water changes won't do any harm, and will actually help your cycle finish up.ppm and mg/L are the same thing when dealing with dilution in water as water's density is 1g/mL.
those nitrites are quite high as well, but they should come down when you change water to fix the nitrates.
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