Markp2483 Posted February 27 Share Posted February 27 Is there an upper limit to tds/hard water? Over the past year and half I’ve noticed my city water tds has crept up from 160 to 335. Using aquarium coop test strips I’m at 300+ for both GH and KH. Ph 8.0. Maybe 5 or 10 ppm nitrate out of the tap. All my tanks have lots of plants and they all grow fine except for scarlet temple strangely. I dose ferts with a dosing pump and inject CO2. Before water change my tds is 550-650 depending on evaporation. After a 50% water change my tds is at 450 range. Tank 1 has: neons, cherry barb, praecox rainbows, some ottos, hasbrosus Cory’s, cherry shrimp and a bristle nose tank 2 has: lambchop razboras, embers, neon gobies, hillstream loaches, yellow neo shrimp and two giant Kuhli loaches. tank 3 is a old folks tank and some praecox fry tank 4 is a shrimp spill over tank/ qt Mini pond has a bunch of rice fish shrimp breed like crazy I feel like I’m on the high side of safe but maybe I’m projecting because I notice the water is itchy after showering. Is there a a hypothetical line we should not cross? also is there any guidance on dosing ferts with hard water? I’ve moved to mixing my own dry ferts but all the suppliers recommend using ro water which I would like to avoid or a least limit it’s usage what do you all think? Problem or just in my head Link to comment Share on other sites More sharing options...
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