changing carbon

[Lance]

There have been reports that too much carbon use can be a contributing factor to HLLE, but I use a fair amount of carbon and I've never experienced HLLE.

[lastlight]

Once a month for me too. Just run it passively in a filter bag.

[Harpo]

Originally Posted by Lance

There have been reports that too much carbon use can be a contributing factor to HLLE, but I use a fair amount of carbon and I've never experienced HLLE.

What is HLLE??

[christyf5]

Originally Posted by Harpo

What is HLLE??

Head and lateral line erosion. Some blame it on excess carbon or carbon particles in the water. It can also be caused by poor nutrition I think.

[Ryan]

Tangs will get it if they are fed too much meats and not enough kelp, algae and nori.