BrettDS
07/22/2015, 01:52 PM
So this is a new 75G tank... not quite a month old and I'm starting to get a bit of GHA on some of the rockwork. It's definitely not taking over the tank at this point... it's maybe on 5% of the rockwork now, but it's definitely been slowly increasing over the past two weeks or so... I started seeing one or two small patches about two weeks ago.
Phosphates seem low (about .5ppm) and nitrates are at about 40ppm. The tank was filled with RO (but not RODI) water and I just started changing about 1G/day of water. I checked the new water and it was showing 0ppm phosphates.
Do you think it'll just run it's course if I let it go or is it more likely to take over the tank? Would I be better off trying to remove as much I can with a toothbrush to help speed up the process or is that more likely to cause it to spread? Like I said, at this point the tank is mostly GHA free except for a few reasonably isolated spots.
Phosphates seem low (about .5ppm) and nitrates are at about 40ppm. The tank was filled with RO (but not RODI) water and I just started changing about 1G/day of water. I checked the new water and it was showing 0ppm phosphates.
Do you think it'll just run it's course if I let it go or is it more likely to take over the tank? Would I be better off trying to remove as much I can with a toothbrush to help speed up the process or is that more likely to cause it to spread? Like I said, at this point the tank is mostly GHA free except for a few reasonably isolated spots.