Cyano!!!!

[guitareefs]

My system is a 300 gallon. Magus Curve 9 skimmer. BR1000SS Bio Pellet reactor. Chaeto in the fuge

Lighting is 2 Current LED strips (fish only now and I plan on adding T5s soon to start coral)

Roughly 300 lbs of live rock. 2 MP40s.
System was bought used. Cyano was prevalent when it was setup with last owner. Much more than what it is now.

Cyano was spreading as a dark red over rocks but I had been doing 100 gallon water changes and blowing rocks off and vacuuming the sand bed. I also changed the light schedule and intensity

The lighting schedule had been
Blues 8 am - 10 pm
Whites 9 am - 9 pm
Both at full intensity

I changed it to
Blues 12 pm - 10 pm
Whites 5 pm - 9 pm
With blues at 100%
Whites at 30%

Cyano hadnt come back sinc vacuuming it out a couple months ago

I recently moved lighting schedule to longer white period at about 50%

Cyano is starting to appear again in these spots where it grew a lot last time.

Any ideas on how to beat it and keep it away?!!!!!

Thank yall!

 

[saltyfilmfolks]

I’d say do what you are doing. It’s slow but the the cyano will burn itself out of the system if you keep it up.

A Refugium can help. So can an eye on your ph. (Kalkwasser in the ato).

That picture actually looks great compared to the mess I got handed in my 30gal.