Water testing

S

Scott89wing

Member
Having issues. Ph low alk low . Mag n cal hi .
120 rr with radions hybrid t5 fixture.
Was dosing kalkwasser and stopped this weekend cause cal . Start with just a alk increaser and now to night I'm hi after 1 dose of alk increaser. Ordered a doser pump and aquaforest 123 . Hope can get this figured out lossing alot of corals
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I wouldnt chase ph. Although with kalk it should hover around 8
Also 7.0 alk isnt too bad. I dont think it caused your issue, unless you have huge frequent alk swings


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I’m not usually one to chase PH either, but that is low enough to stop calcification. I’d go back with kalk. First, your alk is fine but a bit low, so it wouldn’t hurt to increase it a little. While your cal is on the high end, there isn’t really a danger if it goes higher, but at some point, it will precipitate if it gets too high. That’s more of a aesthetic problem though and it really that harmful.
 
The biggest reason you are losing corals is because you are starving them.

0 Nitrates is not good. The corals have nothing to eat when Nitrates are at 0.

Here is where I keep my paramters.

Alk: 7
CA: 420
Mag: 1350
PO4: .025
Nitrate: 8ppm
Ph: 7.92 - 8.11

If you want to increase pH don't dose just increase O2 add a wooden air diffuser with air pump into the first chamber of your sump. Also make sure your skimmer is dialed in properly

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K thanks . Ya trying to get all dialed in again. Had it dial in with old tank in for some reason this new 120 I'm way off on all . So raised alk . Followed directions and it was to much so now alk is hi so waiting for it to drop I'm losing around .8 on alk a day . So with that my doser should be in soon . And then will hope to get dial in once alk drop down to where need to be would 7.5 alk be a good spot . With intense lights . Been adding stump remover 2 tsp a day to get nitrates up there not budging it that cause alk alge have in tank from the cycle of setting up tank . They eating all nutrients? Thanks for all help

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Ok well cal and mag down 410 cal 1400 mag . But alk at 8.7 now trying to get to 8 . Then going to start dosing with aquaforest 123 . Well see how goes have all set up n ready just need to get alk where want n see what lose in a day

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Scott89wing said:
Ok well cal and mag down 410 cal 1400 mag . But alk at 8.7 now trying to get to 8 . Then going to start dosing with aquaforest 123 . Well see how goes have all set up n ready just need to get alk where want n see what lose in a day

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What’s wrong with alk at 8.7? Shouldn’t be an issue since you have some NO3 and PO4.
 
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