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I use a different vinegar/vodka ratio. There is really no scientific proof which is better than the other. Just make sure you remember the ratio you have used. My understanding is that vinegar is easier for the bacteria to use so it is consumed quicker, hence the mixing. But I might be wrong.
Take the GFO offline you will see the nitrate level slowly comes down. You should see some white bacteria film growing on the underside of rocks if it’s working. Skimmer production will increase. this takes time initially so need to be patient.
You will need to dose a little phosphate otherwise carbon dosing won’t work. Do you run GFO? If so then take that offline. The key is to get into a balanced situation. Also unless nitrate is over 20ppm I will not worry too much.
Many have used it to great success. Easy to use. Highly recommended. Make sure you can measure phosphate and nitrate levels until everything stabilize.
When it comes to the price of scientific instrument, sky is the limit. After years of reefing, I realized measuring too much can be detrimental. Everything is not just a number.
Received fish in the mail. Put into container to acclimate. Came back 15 minutes to check. Couldn't find fish in the container. Found fish on the concrete floor. Dried and covered in dust. Curse. Threw fish back into container. Fish came back to life a few minutes later. Put fish in tank. Fish...
Today the water is 1.021. I always have my receiving tank set at 1.020 and dump the fish right in after 15 mins temp equalization. For inverts it should be 1.026.
Keep in mind the hobbyist grade test kit for nitrate can be quite inaccurate. It can be difficult to tell the difference between 5 and 10. I wouldn’t worry too much about it if it’s around 5ppm. You just need to figure out the maintenance dosage over time. Maybe measure once a week and adjust in...