Every Saturday about a 15-25% water change ReligiouslyJust curious when was your last water change?
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Every Saturday about a 15-25% water change ReligiouslyJust curious when was your last water change?
8.25 during the day and 8.2 at night?Ph is at pretty much 8.2-8.25. Yes before I do a water change I heat the water up to basically the same temp. I do you that to check temp aswell as the little thermometer I use for the tank.
Honestly I haven’t tested my ph at night in a while so I can’t give you a 100% figure but I will test it tonight Forsure after the lights turn off or early tommorow morning at like 6am8.25 during the day and 8.2 at night?
I only dosed 2 times this week and then when I saw that alk reading I stopped. I would dose part A Of 2 little fishies c balance a hour before lights turn off then I would wait one hour in between parts and then dose the equal amount of Part B after the hour was up and the lights were off.Just to reiterate what others have said, there is no chance any reef tank has an alk swing of multiple dKH each day unless you add that alk for the rise. Alk generally only declines, though if demand is very low, some other factors can make it slowly rise.
what exactly are you dosing and at what time?
@Randy Holmes-Farley quick question what does cause normal swings in the tank. Because my lights turn on at 12 noon but my wrasse is awake from his sleep before the lights turn on making me thing maybe the daylight from outside is causing something. I’m no expert so this is a shot in the dark
Just tested it. And I’m at 7.7 maybe the reading was a testing error but I don’t see how because I test the exact same way every time same pipettes for each test and I rinse them and dry them with RO. I’m doing a water change tommorow I will be testing at 730 at night now and I will keep an eye on parameters. But there’s gotta be something up my sps have bleached their tips now branches but all my lps zoas and shrooms are fineAlk does not swing on its own. It only swings if you dose out of step with consumption.
I suspect your observation was test error.
pH is the primary thing that swings day to night, and ORP, but that is a pH effect on ORP.
I like the old salifert test kit. It’s a pH indicator with a known acid titrant. Not a lot that can go wrong.@Randy Holmes-Farley when I dose after figuring out the consumption rate should I take the tube I have from my skimmer intake that runs outside out and allow the higher co2 levels in my house take over the intake?
Why do this if I can test at the same time for at least 3-4 days in a row and use that as the consumption rate why would I wait a week to change the water again and then calculate. I’m curious?I would test alk right after water change for 2 Saturdays see how much your alkalinity dropped. On the second Sat. Calculate how much you need to bring it up to the first sat. Then spreed that dose out through the week . Then ajust that to your Saturday waterchange.
I do not have a controller or any auto dosing but I was dosing. I would test the alk at the same time of day for 3 days then whatever the average consumption was between the days I would dose that nightly.
This is why I’m perplexed because no I’m not adding the buffer to my ro as it decimated my Calcium levels. But it was to keep ph up but then I ran a hose from the skimmer outside.I’m running Red Sea coral pro so possibly that high alk content is adding to the problem. But could that be causing Dailey swings I’m gonna test my alk in about 30 minutes then when I get home from work I’ll post the numbers it will prolly be a insane swing.