Stuff Growing in Salt Storage Bin?

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rlamos1

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Hi, I use a 20 Gal covered but not sealed Rubbermaid to mix and store my salt water for use with an auto water change system. I use Tropic Marin Reef Pro with 0 TDS RODI and heat/circulate it. I never let the bin run dry so as to keep things rolling with my AWC. Over time, I get this black stuff that looks almost like mold covering the surfaces inside the bin except where the power head is blowing. It is even floating on the water surface and collecting on the wall at the water line.

Any ideas what this may be?

Safe to ignore?
 

Damon Jensen

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I get brown algae, not the same as use, but definitely in the water. I posted a similar question and was pretty much told it was no big deal as there are micro organisms in the Salt mix.

I would say post a picture, it helps people identify stuff
 

ReefKeeperElite

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Hi, I use a 20 Gal covered but not sealed Rubbermaid to mix and store my salt water for use with an auto water change system. I use Tropic Marin Reef Pro with 0 TDS RODI and heat/circulate it. I never let the bin run dry so as to keep things rolling with my AWC. Over time, I get this black stuff that looks almost like mold covering the surfaces inside the bin except where the power head is blowing. It is even floating on the water surface and collecting on the wall at the water line.

Any ideas what this may be?

Safe to ignore?
I get the same thing, attached is a video.

This is after a week of freshly mixed Tropic Marin Pro in a newly cleaned storage bin.

My bin is in the garage, and has a Vortech Mp10 pump continuously circulating the water at 25% speed.

It is not heated, so the temp would vary a bit, but normally in the 70s during the summer.

I keep light from the bin by covering the rack with black heavy duty garbage bags.

If anyone knows what causes this and how to prevent, guidance would be appreciated from myself and others!

 
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