Adding dead rock

[Madmak]

We posted at the same time...

I would think that after 6 Canadian months outside it should be pretty dead but I may be wrong, never a bad idea to keep a close eye on things.

[asylumdown]

It really depends on how much rubble we're talking about vs how much matured live rock you've already got. It's been my experience that a mature system with enough rock for it's volume and occupants is pretty resilient, as it's got a whole battery of processes in place to deal with waste above and beyond the nitrogen cycle. You've also got thousands and thousands of teeny little critters that will go to work eating anything organic before it breaks down in to ammonia. If you're talking a relatively small amount of rubble compared to what's already in there, you're likely not going to notice a thing except for the gradual colonization of life back on to the rubble.

If you're really worried test for ammonia a couple of times over the next couple of days. If you see any sort of colour change, do a water change and add some prime, but I bet you'll be fine.

[canadianbudz604]

I've got 35lbs of rock and I put 2lbs of rubble most of it in the hob filter with my chaeto I hope it doesn't mess it up thanks for the help

[Skimmerking]

Originally Posted by canadianbudz604

I've got 35lbs of rock and I put 2lbs of rubble most of it in the hob filter with my chaeto I hope it doesn't mess it up thanks for the help

that isnt going to have a huge impact on your system. I wouldnt worry about it. Well I wouldnt you might but i wouldnt

[Wayne]

With it being dead 6 months I would just rinse it in r/o water again, let it soak overnight in clean water and you should be fine