thanks..My bulbs are fairly new though and I don't think they need replacement until about 50000 hours or something ridiculous...they are solaris..my problem is controlling the computer that controls the lighting...Everything in my parameters looks like I am overfeeding but I am hardly feeding at all...maybe one cube every second day total...and there are about 9 medium fish, 10 chromis, and a few other small ones...so I don't know why I can't get my parameters down....but as I said i seem to have the cyano algae undercontrol (I hope)...
but what is the contraphos that you used? is that just an algae remover? I can't read the language it is written in