I have a cyanobacteria problem. I am using PhosBan/Phosguard as a filter medium and it doesn't really work that well, shall I worry of getting a GFO reactor or am I good with how it is? How would GFO be different?
my setup:
- 30 gallons tank
- 5 cichlids about 3-4 inches long
- Fluval FX6 running all the time (bottomfloor is clean)
- 1 feeding a day, with 1 pinch of cichlids food
- air at high flow with long diffuser
- some sunlight in the morning for about 2 hours
- some plants struggling to grow
- plant lamp on a timer from 2 pm to 8 pm
- over the wall topfin filter with PhosGuard medium, changed every 2 months
- tap water with primer + seachem additives changed 1 time a week
problem is the green patches on the rocks and glass that are hard to scrub off, and it keeps spreading
it used to have brown algae all over and little cyano here and there until i started using PhosGuard
now brown algae is gone and it's just cyano and it spreads like a wildfire