zrogst
New member
I heard that macro can release toxins and kill your tank ?
At certain critical masses popular macros like caulerpa or halimeda will 'go sexual' releasing both spores/gametes into your system & the nutrients they've been uptaking from your tank. It can crash your system by flooding it with nitrates/phosphates, changing your pH, or even overloading your biological filter with ammonia.
There's usually a visual indicator before it happens, and it can be cleared up with a combination of filter pads, carbon, and water changes.







