Refugium safe

[kaptken]

Ive had a whole 29 tank full of rubble rock covered in foot high taxifolia go asexual or just dump its chloroplasts right before my eyes.  it started just after the lights went on, an a few minutes later at one end, some macro started window paning, dumping its color in what looked like smoke rising from it.  in a couple minutes, the entire tank full of taxifolia had dumped, and turned to a clear cellulose skeleton. and it was done.  the water was a cloudy green.  the macro died back to its foot holds, but i never lost any of the fish in the tank.  it had only a big bio wheel filter and no skimmer and no sump. of course i did a 50%  water change.  but all was well.  this happened many times as the taxifolia grew back.  when it ate itself out of house and home , it would crash again.   

currently i have a big wad of chaeto and some razor macro in a 40 breeder below my old frag tank.  its like a fuge with plenum sand bed and some rock and two big tangs. well, pretty often, every couple months the razor dumps and dies back .  only takes a minute.  but no harm to the fish, the tank or the frag tank.  it just gets recycled. all by itself. it never bothered the 7 year old spawning pair of clown fish in the system.  they just kept right on laying eggs every 2 weeks, to this day.

you must have some other kind of problem.     

[justsayno]

you must have some other kind of problem.     

I'll know if it's fixed in the morning, just got done a full tank drain down, remixing  200 plus gallons, I have  a real good ideal what it was. 
  Funeral tomorow for the tang, he was  a trooper.