TerraForums Venus Flytrap, Nepenthes, Drosera and more talk
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hey is the lawn sand from FEF ok for cps? im not sure what coarse sand means, i spoke to one of the guys in FEF and he said that it was well washed and he not sure if it was river sand, anyone using it?
May not be the best for CP soil mix, but I did use it.
Just make sure you wash it many many times, soak it over night and soak it again with distilled water, you may want to measure the PH and TDS if you have a PH/TDS meter to ensure low mineral content.
My choice is very expensive. Washed river sand for aquarium use from an aquarium shop in Clementi. Five kilograms for S$16 (I think; ask Cindy who bought a pack recently). Saves alot of water and time for me.
If there are swimming pools in Singapore, then there are swimming pool filters. Such usually employ coarse silica sand and probably at less expense than aquarium sand.
Unless you're soaking the cup of lawn sand in the bathtub! Your sand should be washed till the water is crystal clear...but that will take alot of water.
I suppose that's why guqin and I buy the sand at that price...but shouldn't we just share the cost and buy a huge pack hah?
It's not just mud that is the problem with sand other than pure quartz (silica). Other minerals will leach into the substrate, and simple washing will not remove other mineral inclusions. Another source may be construction companies dealing in sandblasting supplies. Very often this is silica sand, which is uniformly white, like sugar. You may need to ask for "pool filter sand" at the businesses dealing with pool supplies. Very often it is not stocked on the shelves, although I am sure it must be used. Failing this, it would probably be better to use perlite/peat or pure peat vs. sand with other mineral components as inclusions. One thing CP hate is lime, and carbonates are frequently a component of non-silica sand.
thanks for the advice but perlite gets alot of algae and it is a little expensive.
also the perlite rocks are too big for growing seeds/seedlings.
Is sand from a river bank fine? Also are there rivers in Singapore
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