Too Much Carbon or HCGFO?

[LoJack]

Originally Posted by ronau

Hello,

I'm planning on running Carbon and HCGFO in separate reactors on my new, and first, marine tank. According to the calculator on BRS, I should be running 0.63 cups of Carbon and 0.78 cups of HCGFO. Are there any problems of just rounding it up to 1 cup of each?

Thanks,

Ron

Carbon unlikely. But GFO … you want to be careful with GFO. It has a tendency to strip the water of nutrients very very quickly, which can cause problems. GFO also has a lowering effect on alkalinity in large quantities.

In my experience with GFO, less is better than more.