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First time crystals

Would running water through a brita filter reduce tds, just trying to think of a more cost effective way

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Planted Bows said:
Would running water through a brita filter reduce tds, just trying to think of a more cost effective way

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I don't think that would be cost effective, if it even worked; unless it's a couple of litre changes at a time?
 
Well I've just picked up 25 litres of RO water, would doing a 50% change with 50% RO water added back in so the tank has 50/50 split of tap water and Ro water reduce the tds?

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Planted Bows said:
Well I've just picked up 25 litres of RO water, would doing a 50% change with 50% RO water added back in so the tank has 50/50 split of tap water and Ro water reduce the tds?

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Yeah, depending on tds of your tap water. So for example your tap water may be say 060, RO is say 010, would bring the level down from 060 to around 025-030, might not be exact like that, but you get the idea
 
Yeah i get it. I've just tested my tap water and it's around 250 but yet in my tank it's near 400!

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Planted Bows said:
Yeah i get it. I've just tested my tap water and it's around 250 but yet in my tank it's near 400!

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I've found mine rises, it's cause the dissolved solids stay in the tank, while water evaporates off; hence the need for larger water changes or top ups with RO
 
Do you have any rock or substrate that could be causing the rise?

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My substrate is jbl pro scape and I use landscape rock. I know the substrate can cause ammonia leaches?

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It will likely be the landscape rock. Does it have white seams?

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You might be able to keep your tds stable with small, regular wcs with ro water or remineralised water that has lower tds than required. It would probably not bother cherries but crs like stable parameters so you are making it harder for yourself. The rock will always raise your tds. In a big tank with a little Rock it isn't such a problem but small tank is harder. Personally I don't use anything that messes with my parameters. The only rock I've used in a tank has been Sado Akadama which is inert.

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Bummer!! I have RO water and plenty of it! I will do a water change tomorrow and use just Ro water so it will have a 50/50 split and then measure tds daily to see what rise I get.

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Just thinking I do have 2 small calcium rocks too. I was told these are a must in a shrimp tank. I assume these will have an impact too?

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Are they calcium rocks or the white mineral rocks sold specifically for shrimp?

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