Alberta reef first reef

[Eb0la11]

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Did the tank have sand in it before you moved it from your co-workers place to your own? Disturbing this sand can release built up toxins that have fallen under the surface of the sand into non-oxygenated zones to rot. This would poison the water extremely fast. If this is the case I would do a 50% water change pretty much immediately and keep doing 10% every day for a good week.

Thought Id say that right away since time is of the essence if thats the case.