Brian Ward January 31, 2015 Share January 31, 2015 I have a bucket of IO that is a solid block. It's been opened but doesn't seem much if any has been used out of it. If I chisel off pieces and drop it in water to dissolve, is that OK? Or has it absorbed too much bad stuff and I should just toss it? Link to comment Share on other sites More sharing options...
gmerek2 January 31, 2015 Share January 31, 2015 Mine sometimes gets crusty from the moisture in the air. I drop in the crust blocks. Link to comment Share on other sites More sharing options...
smallreef January 31, 2015 Share January 31, 2015 I've used chunky salt... Not really noticed any problems,lol Link to comment Share on other sites More sharing options...
Rob A January 31, 2015 Share January 31, 2015 I would use it. Link to comment Share on other sites More sharing options...
YHSublime January 31, 2015 Share January 31, 2015 I would use it, but I would try to use it in one whole batch (ie. 200 gallons.) I think if the whole thing is a solid block, I would be worried about certain minerals getting weighed more into different sections, and not having a proportionate distribution in separate batches. That is my complete lack of science theory/explanation. Link to comment Share on other sites More sharing options...
zygote2k January 31, 2015 Share January 31, 2015 some elements will precipitate out of the solution and you'll have white powder residue in the bottom of the bucket. It won't mix to the stated salinity either. Link to comment Share on other sites More sharing options...
Brian Ward January 31, 2015 Author Share January 31, 2015 But that won't cause any issues? I just throw away the precipitate? Link to comment Share on other sites More sharing options...
Origami January 31, 2015 Share January 31, 2015 But that won't cause any issues? I just throw away the precipitate? It won't cause issues, but your parameters may need more tweaking if you're used to it mixing up a certain way because some elements may have combined into insoluble precipitate and won't be available for calcification. Link to comment Share on other sites More sharing options...
Brian Ward January 31, 2015 Author Share January 31, 2015 Cool. I'm just adding rock and sand today hopefully so less concerned about specific elements. I'll be sure to check them before I actually add corals. Link to comment Share on other sites More sharing options...
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