so after doing a little research ive been reading that clams and brown or red gfo dont mix anyone have experience. please chime in
You are right. It's been discusse on there before if you search. I think the latest was with EricTheRed.
GFO can cause pinched mantle in clams. It's advised not to run GFO while housing clams. And I wouldnt risk those clams you got
Lots of reading
http://www.google.com/search?q=pinched+mantle+gfo&ie=UTF-8&oe=UTF-8&hl=en&client=safari
Yep, I had pinched mantle and had to fresh water dip my clams several times and I took my GFO offline for a while until they got better. However, what i believe was happening is that I had my GFO tumbling too aggressively and it was causing fines to get into the water which irritated the clams. I have since gone back to GFO but barely let any water flow through the reactor. My phosphates were at 0.1 and went back down to 0.01 even with the super slow flow. Also, it is hugely important to rinse out the new gfo until ALL the fines are removed and the cleansed water runs crystal clear. this can take 5+ minutes so I take my reactor to the kitchen sink and run fresh water through it so I'm not wasting several gallons of tank water to flush out the fines. Seems to be working fine...the clams are the happiest they have ever been.
The only problem with this is that you are using up some of the gfos ability to absorb phosphates since your sink water has phosphates in it. Or at least that's what I heard
This may be true but I have always rinsed my GFO and carbon right off the tap and haven't noticed a negative to do so, I always wait too long to change it out anyways so I couldn't tell you if it effects life of the media. I just don't see a benefit to wasting good water or using old tank water to rinse the new media.