View Full Version : Flaking out

09/06/2017, 01:00 PM
I'm having a strange issue with Reef fusion 1 and 2. My alkalinity is a tad low 7-8 dkh. When I only use part 2 it goes in cloudy then clears like its supposed to. When I follow the instructions and add part one first and wait a few minutes before adding part 2, part 2 turns into a flaky precipitation! Last calcium test was 360. Any ideas?

09/06/2017, 03:40 PM
Mag level? And you really shouldn't put them in within a hours time together

09/06/2017, 04:31 PM
Do the flakes redissolve when stirred a bit? If so, I suspect that you are seeing magnesium hydroxide. Are you adding the supplements into the main display or into a smaller chamber? Smaller chambers often encourage more precipitation.

09/06/2017, 08:10 PM
Thank you both for replying! I have not tested for the magnesium level, but see the value and will do so. I am adding these to the display tank because it is my small system (29gals) without a sump. The flakes do dissipate pretty quickly. However the numbers don't seem to go up. This is a system that I have recently (3 months) cleaned a bunch of cyanobacteria and algae from neglect and lack of water movement. I added a powerful canister and It looks awesome now! I think the numbers are close just a bit low. Fine tuning because I'm determined to make this setup a success! Any other advise or input is always appreciated :thumbsup:

09/06/2017, 08:23 PM
If the flakes dissolve, they almost certainly are magnesium hydroxide. This compound precipitates temporarily due to the high pH of the alkalinity supplement. It redissolves quickly, so no harm done.

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09/07/2017, 06:26 PM
:spin3:Just to follow up mg level is 1390 today ca is 380 and kh is 7.5 Everything in the aquarium looks great so I'm just gonna keep an eye on it! Thanks again

09/07/2017, 09:51 PM
You're welcome. Good luck!