Bacterial bloom?

[Madi.crab]

Hi guys, I have a bad feeling that there is a bacterial bloom in my tank and I’m not sure what to do about it. From the outside view of the tank the sand has small greenish patches in the sand. I herd that your supposed to immediately dig up crabs and relocate them but I have no extra sand in a container for them and a lot of my crabs are buried. What should I do? I haven’t dug anything yet as I am waiting for your advice
Thankyou in advance
Madi.crab


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[soilentgringa]

Green is algae and is harmless. It's actually a sign that your substrate is getting oxygen.



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[Madi.crab]

So these green spots are harmless? I googled bacterial blooms and the images kinda looked like this


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[soilentgringa]

It's algae.

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[soilentgringa]

Bacterial blooms are usually grey or blackish in color and smell like rotten egg.

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