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This doesn't work, I know from experience. Over time the heavier sand works it's way down and it becomes mixed, with the fine sand once again becoming waterborne.You could always layer a larger grained sand on top to hold the smaller sized sand in place.
This doesn't work, I know from experience. Over time the heavier sand works it's way down and it becomes mixed, with the fine sand once again becoming waterborne.
We've got two Nuvo40s in the house - one barebottom, one sand - and the barebottom one is just so much easier to 'tune'. Its less 'stable' in a way - but more responsive. IE, if my phosphates are .10 in the barebottom one, and I want them to be .05, I just siphon out anything I see and turkey baste for a couple days - and they drop to .05. The enormous buffer of bound phosphate in the sand in the other tank means dropping from .10 to .05 is weeks of work and lots of GFO.I love my bare bottom tank. Super easy to siphon the junk out and see the dead zones. I put a layer of starboard down to protect the glass. Comes in white or black.
@Ron Reefman - You're telling me that you couldn't put a thicker layer of heavier grained sand over a piddily 1/4th layer of fine sand and have it hold it in place? The only problem I could potentially see is if there was something in the tank burrowing through the sand to stir it up all the time. Well...that and siphoning...that could cause a dilemma. LOL
I’ve tried it on my last tank and when I finally upgraded I drained the old tank and the sand was hard like concrete! I actually needed a masonry shovel to get it out of the tank so I could can and sell the tank!That is exactly what I'm telling you. It will not work long term. The heavier course sand, will slowly over time, sink down into the fine grain sand and end up on the bottom. Others have tried it and it does not work.
I’ve tried it on my last tank and when I finally upgraded I drained the old tank and the sand was hard like concrete! I actually needed a masonry shovel to get it out of the tank so I could can and sell the tank!
I'm not the one that posted that it was a reply to my thread@Ron Reefman - You're telling me that you couldn't put a thicker layer of heavier grained sand over a piddily 1/4th layer of fine sand and have it hold it in place? The only problem I could potentially see is if there was something in the tank burrowing through the sand to stir it up all the time. Well...that and siphoning...that could cause a dilemma. LOL