02-07-2014, 03:10 PM
| || |
i've never tested, never tried sand/plants from the local steam where i live.
going by what i red awhile ago about fish in the river you're considering, ... the possibility of parasites increases because of the presence of fish in that water. the parasites know fish will be coming back and they can do their thing again.
now the reality, ... if it's a river, it's only got fish in it at one point in the year (spawning) and the rest of the year it's fresh water moving any parasites downstream till it runs clean and any parasites remaining die off because their hosts are not present.
i'm no expert, i'm just going off what makes sense to me, ... sure it's a good place to start, and science will show example of example of where i'm wrong, ... but science could also show examples of when i'm right.
if your only seeing fish during spawning season, then i'd say odds are more in your favor that it's all good
as for what you get from the river, ... i could expect various zooplankton, and phytoplankton, maybe bacterioplankton as well. if you're going to use whatever you get from the river as is.
if you're going to clean the sand (lots of water till it runs off clear) i'm sure at this point it will be clean of everything regardless what was in the sand to start with, dangerous or friendly, it's all going to be lighter than the sand itself and be washed out.
it's a lot of work and time
that's what the trade-off is, ... if you want to save a couple bucks go for it. if you think "hey, it's only a couple bucks get the playsand from the store, $5 for 50lb is rather cheap
regardless, (and because everyone has their own situation in life) just know what you're getting into and an idea of how far you want to go so you don't look back several months from now and go "oh damn, that really sucks"
myself i'm considering the stream here because of the additional live it's got, ... it's got greenwater (i am noticing is present even now in the middle of the winter (a faint green tint in the water), it's got tiny zooplanktons (dono what kinds).
getting dirt from the stream this time of year i'm pretty sure i'm guaranteed to get resting eggs to ensure more zooplanktons, ... while these are small (from what i saw from a sample i took before) they're also live food
and enough will keep the greenwater in check if they reproduce fast enough.
but that's my interest, and many would freak if something like that was done to their tanks. ... for now it requires i do lots of research and even consider what plants i have in my tank so the line-of-sight is broken enough to give the zooplankton a fighting chance at surving