Pufferpunk
New member
Natural seawater is 1.027, I believe. Heard back from our scientist after he read this thread:
"Fun thread! I think I would be on the same wavelength as jdieck's post on 3/6. I would suspect residual contamination as the main culprit, but whether bacteral, algal, or simple physical (clay fines) would be harder to pin down. Also agree with those pushing against light exposure during mixing and storage or aeration. Light exposure and evaporation are the enemy - both from contamination and energy input. I get diatoms in my aging vessels rouitinely (fine with me, it ties up the silicates in the water before I use it). Ditto mineral films as a meniscus crust, less fine as they can flake and take up residence in the bottom of the container for possible recycling (which diatom shell silicates do not do).
The richer salt mixes such as RC may well produce more issues - they are richer in specific materials for a reason. But I suspect that the real issue is vessel and equipment upkeep, not the mix used.
One Oxiclean warning for those using submerse mixers or pumping - never submerge any metal in Oxiclean, even stainless. You will get metal oxides into the water and corode the metal fittings. Ceramic impeller shafts are OK."
"Fun thread! I think I would be on the same wavelength as jdieck's post on 3/6. I would suspect residual contamination as the main culprit, but whether bacteral, algal, or simple physical (clay fines) would be harder to pin down. Also agree with those pushing against light exposure during mixing and storage or aeration. Light exposure and evaporation are the enemy - both from contamination and energy input. I get diatoms in my aging vessels rouitinely (fine with me, it ties up the silicates in the water before I use it). Ditto mineral films as a meniscus crust, less fine as they can flake and take up residence in the bottom of the container for possible recycling (which diatom shell silicates do not do).
The richer salt mixes such as RC may well produce more issues - they are richer in specific materials for a reason. But I suspect that the real issue is vessel and equipment upkeep, not the mix used.
One Oxiclean warning for those using submerse mixers or pumping - never submerge any metal in Oxiclean, even stainless. You will get metal oxides into the water and corode the metal fittings. Ceramic impeller shafts are OK."