low alkalinity

[bobsea]

My dKH stays low, between 7.5 and 9.5, despite putting in 60 ml B-Ionic alkalinity in a 75g system. Mg is 1300 and ca is 410. Any ideas what is causing this and what I can do to raise it.

 

[neoalchemist74]

what brand of test? and how old?

 

[neoalchemist74]

9.5 is actually a little high with mag at 1300 and cal at410 I wold be a little more inclined to raise mag a little. aslightly higher mag can accomodate higher alk and cal , to a point.

 

[bobsea]

low alkalinity

Been using Salifert Also tested at the lsf, Phishy, a number of times.

 

[A.VOID]

My dKH stays low, between 7.5 and 9.5, despite putting in 60 ml B-Ionic alkalinity in a 75g system. Mg is 1300 and ca is 410. Any ideas what is causing this and what I can do to raise it.

1) 7.5-9.5 is pretty much ideal. I like low 8's. Not sure why you want to raise it beyond that ?
2) I don't understand what you're asking about low Alk. Your corals will take up the alk 24/7. If you dose manually, then you will see it spike after the dose and go down throughout the day. If you want it remain at a constant (which is ideal), then you will need to go mechanical (reactor, kalk, dosing pump for two-part)

 

[bobsea]

Thanks for the input. My concern is that I have to put in 60ml of B-Ionic alkalinity to maintain 7.5 to 9.5 dKH for 75g total water. My coral load is moderate.

 

[A.VOID]

sounds exactly right for a moderate, healthy load

 

[CleveYank]

sounds exactly right for a moderate, healthy load

Yeah it's in the right ballpark for load and system size.

Some setups can reach 2 and even 3ml per gallon of Ca &Alk dose respectively. So just continue to test and adjust as things grow larger and demand with it. Keep updated test kits and avoid contaminaiting your test kits and you'll be fine.

 

[RokleM]

http://reefkeeping.com/issues/2006-02/rhf/index.php
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