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I need to increase mag. I have magnesium chloride hexahydrate powder. But just noticed Epsom salts are needed as well per Randy's two parts recipe. In the last year or so, I have added about 2~3 gallons of solution made by just magnesium chloride hexahydrate powder without epson salt. Should I...

Using 50% dilution, effluent still tests to 20 DHK I stopped the effluent feed, and now pumping the effluent out into a seperate container (for manual dosing later on). Once reactor reaches 6.80 PH, I will start testing effluent before deciding when to bring it online again. I must have...

I was testing cal reactor effluent after replacing the media with new. In the past, I needed the PH at 5.90 to get effluent to 10~13 DHK out of the old media. Re-calibrated the probe multiple times but did not help. Today's test was done after the new media reached PH 5.90 for about 5 hours...

Hanna Alk tester shows 20 DHK. Is this at the tester's max limit, and thus the actual value could be higher?

Matt (Madhu) from Violet Sea recommends to try live "California worm". Not sure if that is a bit easier to get to?

I tried shavings of frozen market shrimp. He attempted to eat that. Will keep doing this for next few days. Does Neptune sell live black worms? Julius

I got a copperband buterfly fish 2 days ago from Violet Sea, not knowing it does not eat pellets. Can somebody suggests ways to care for him? I watched 2 videos. Currently feeding twice a day freeze dried mysis shrip. He nis not eating that but kept searching rocks. Bought brine shrimp...

Oh i see. @Coral reefer Reefer Thanks for the reminder. Did not realized it expired. Will do tonite

How did my apex codes for cal reactor ph probe allowed ph=5.9?

Randy, just completed the mod. So far so good. The 1/4 connector extends slightly below the lid. There is a small pocket of air that wont purge. I may have to shave the connector so it is flush with the lid. Do you have this same issue? Dont think it impacts the function.

Done! The acrylic lid feltmuch harder and “dry” when drilling and tapping. Hard to tell what is the optimal drilling speed. Step drill helped. First time doing tapping. Difficult to keep the bit stable at the beginning before the bit catches the material good. Toward the end, resistance to...

I can't wait to do it, but the tap bit is delayed and won't be here until 8th ;-( I tried the step drill bit today on starboard, which feels soft and pretty easy to drill. Wonder how different it is to drill acrylic lid. Did you feel danger of cracking when drilling? BTW, is this the right...

Did you drill your hole to be 1/2” or 7/16” (before start tapping)?

Without a pilot hole that is through both surfaces, how did u ensure the drilling from both sides will meet and align in the middle perfectly? If the entire length of the hole is not tapped/threaded, how did the male threaded end of your connector go through the hole?

Randy, How is the new mod holding back the bubbles? Getting ready to copy what you did. When you did 1/2" size hold, was there absolutely plenty of materials left to tap the thread? I purchased 1/2' step drill (see the one on the right side of the photo in the link below). It has a step of...

Randy, The elbow you used, per the link to amazon, is "NPTF" thread. Your tap however is NPT. I googled it, and looks there is a slight difference between NPT and NPTF threads (https://www.hoseassemblytips.com/what-is-the-difference-between-npt-and-nptf/) I am wondering what I should use. I...

Randy, I have the same issue with my used Georeef cal reactor. Was just about to throw in the towel, after two years of trying, until seeing your DIY modification tonight. How does it work so far? Love to hear your update after you run it for 1 week plus. The teflon on the flexible extension...

I have been trying to stop the Co2 bubbles build up in the Georeef cal reactor purchased used two years ago. Replaced circulation pump, hoses 3 months ago which helped a lot, but bubbles still accumulate after 3~5 days. I am running at PH 6.5 and effluent rate of 8ml/min. Earlier today, got...

I have a condition called bubble algaeforbia, and really scared they contaminate my main tank. Boun suggests to try emerald crabs. I guess I will have to try that, so he is not disappointed at me. So the free offer is no longer at this moment.

I have come around the emotional shock and will let them be. On a different note, there have been bubble algae in my IM 20G quarantine tank. Unsuccessful to get rid of them for good. Decided to shut it down. If anybody interested in the corals there for free, pls let me know. I am a beginner...