Coral issue not lasting

Thanks Steve.

Filtration system, I have two filters composed of biological filter mat and sponges type mat. Since these two filter are located on the top part of the aquarium I have not much room to play with. I didn't change my two bioligical fitler mats since 6 months actualy and there were not in good shape, so i have just replaced them both without changing the other sponge mats.

Well noted with the salt, since i top it up everyday, i will do it from now on with salt water untill reaches salt level of 1.025.

Thanks

 

Beautemps - those old pads could explain the nitrates - but not the nitrites
they should still be proccesed

its to late now I suppose but rinsing those pads in old tank water should have been 1st action rather than throw away - as bacteria required to process the waste was living there

as a general rule, never throw away any part of an existing biological filter system

has anything died recently? that may account for the high nitrite reading?

Do you have access to a product by SeaChem called Purigen?
if so might be worth adding that into your filter system as that will certainly help bring both of those high levels downwards - and will cover you against any possible damage done to your inhabitants from the discarding of old filter sponges

Steve

 

Your parameters are definetely unnacceptable. For people to best help you here you should fill out this form:
http://www.3reef.com/forums/asap/asap-please-start-here-54456.html