My goldfish is in a 30 gallon tank with a 50 gallon filter
I bought an electric vacuum thing and have been using that to clean her out. The thing is I haven't been doing water changes, maybe for 4+ months. I haven't tested the water either for a long time (over 8 months).
She's been sitting on the bottom lately and kind of slow, so I tested and found -
Nitrates 80 ppm
I just did a 30% water change
Is she going to make it?
Her previous owner had her in a small bowl for 2 years, she developed red spots, but I put her in a bigger tank and she seems pretty resilient.
How should I go forward?
It's been long that you have changed the tank water.. It is very essential to do a weekly water change no matter what the tank is.
As you have mentioned you have done a 30% water change. Do a 30% water change tomorrow and day after and then make sure to do 25 to 30% weekly water change..
nitrates are showing high (reason you have not done a water change).. What is the ammonia level??
Do condition the water when you do a water change..
If your nitrates are that high, I would do more of a 50% or even a 75% change (and perhaps more than 1 change during the course of the day) to get the nitrates down to 20ppm or less which is where they should stay.
Agree with above poster - why aren't you changing the water more often? Especially with goldfish which produce a lot of waste. Poor water conditions lead to stress and illness (and sitting at the bottom of the tank being listless) - why would you want to put your fish through that?
You say the ammonia is fine? That means it's reading 0?
Is there anything else besides the goldfish in this tank?
I would do an immediate 75% PWC and then another 50% to bring your nitrates to 10. Then do a weekly PWC of 50% to keep the nitrates under 20. Also clean 1/2 of your substrate each week (not the whole tank at once) and watch how much you feed. Overfeeding can also contribute to high nitrates. Doing this weekly should keep your goldie happy and healthy.
My 75 gal Journal & My Dual 29 gal Journal
75 gal - Gold Pristella Tetras, Scissortail Rasboras, Neon Dwarf Rainbowfish, Leopard & Zebra Danios, Wild Caught BNP
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+1 to gronlaura and imma24. If you do as they say, your goldfish should survive. They are pretty resilient, but it is possible he will get an infection/disease from the stress...keep a close eye on him!
20 gallon with a male betta, neons, glowlights, and red cherry shrimp. (work in progess) Recently added a few LIVE plants and driftwood, Woooohoooo!
I just checked the water and now the nitrates are reading around 0 ppm. Is this possible?
I only did maybe 30% change, but I did vacuum up and started an air pump.
So if it is possible to go from 80 to 0 in one day, will it effect her?
She's swimming more but still was just sitting for a bit.
Thank you thank you, sorry to my fish!
I didn't change the water because I replaced the syphon hose vacuum I used to change water and vacuum the poop with an electric one that doesn't take the water out. I figured if it's just cleaning the water that mattered then I wouldn't need a change. Guess I am wrong but hopefully not too late.
0 ppm nitrates is not possible. They don't just go away. What are you using for testing? Strips or liquid test kit? Strips are notoriously innaccurate, and liquid kits can give a false 0 reading if you don't shake the bottles enough.
I say do a couple more large (50-75%) water changes asap, and continue with at least 50% weekly long term... Make sure to use a good de-chlorinator and match the temp of the new water to the tank water as close as possible to avoid stressing the fish more...