dry rock is NOT live rock
dry rock is NOT live rock
dry rock is dead rock
Oh man this is not good news. Ya know. just when you thought you knew something about what you're doing in this hobby. Someone comes along and throws ya a big ole curve ball! Lol. Ok so could you elaborate about this process bc I already have some i bought off a guy soaking in the tank. Its just RO/DI water No salt yet But i'll dump it and start again if I have to.
RO/DI (freshwater) will kill all the marine life on any liverock- bad AND good.
One of the LARGE reasons real liverock is more expensive than dryrock is you WANT desirable marine critters that occur on real liverock. Sure- there are some unwanted pests. But you'll ALWAYS have to be vigilent againt them.. even if you construct a reef aquarium using DEAD (dry) rock.
There's no reason to dump the rock you already purchased.
Rock (both live and dead) for marine aquariums are actually old dead coral heads (or they should be. I tried granite once and it was useless!)
EXCESS Phosphates (PO4) fuel nuisance algae growth. We accurately determine low level PO4 in marine aquaria using a Hanna Checker or Colorimeter. (There are other low level PO4 tests. Hanna is most popular.)
If I were to purchase "pre enjoyed liverock" I would
1) make sure the aquarium it came from was NEVER treated with any meds
2) make sure that if it came out of saltwater and was kept wet it STAYS wet in saltwater
(or you'll have to recure it)
3) if it dries out or you kill life in/on it by soaking in freshawater you WILL have dieoff. Dying organisms fuel rising levels of organics. You can use the rock for sure... but I would cycle it/cure it/ "cook it" (note this process does NOT involve HEAT) PRIOR to placing it in an aquarium or do this process INSIDE the aquarium (as long as it's a new aquarium containing no living critters.)
You have many questions to ask for sure.
Save yourself TONS of later headaches and ask them!