Is GH - 8dkh safe for CRS?

[revo_79]

Last night did a water check of my tank and discover my GH is still at 8dkh, previously at cycling stage it was still quite stable at 6dkh. Wonder what is the cause to the rise?

These are the two test results I obtained from my water check at a span of few days:

210810 (10 CRS added into my tank)
PH - 6.0
Ammonia - 0ppm
NO2 - 0ppm
NO3 - 40ppm
GH - 8dkh
KH - 1dkh

240810 (3days after 10 CRS added into my tank)
PH - 6.0
Ammonia - 0ppm
NO2 - 0ppm
NO3 - 20ppm
GH - 8dkh
KH - 1dkh

Know that Mosura Mineral Plus do alter the GH value but have not been doing any WC recently so how come my GH will increase? Is it because of my low PH at 6.0 that causes it? But PH has also been 6.0 since Day 1 till now.

[revo_79]

Just to add on, my CRS has been in my tank for 3 - 4 days. Throughout these few days have noticed two molting.

to me gh 8 is ok.

[sword28]

I believe when the soil is new, its PH lowering ability is very good, so your PH reading will be low.
Mine is also at low 6 at about 6.2.
Suggestion is to add coral chips.
But you must monitor.
I added 2 bags, and PH goes up to 6.8.
then take out one pack ... PH now is about 6.6

[revo_79]

Originally Posted by chrisamos

to me gh 8 is ok.

Ok. So If I still dose Mineral Plus for my next water change, will I still expect a rise in my GH? Quite worried that it will become worse and screw up my parameters?

[revo_79]

Originally Posted by sword28

I believe when the soil is new, its PH lowering ability is very good, so your PH reading will be low.
Mine is also at low 6 at about 6.2.
Suggestion is to add coral chips.
But you must monitor.
I added 2 bags, and PH goes up to 6.8.
then take out one pack ... PH now is about 6.6

Actually Im quite in a don't know what to do stage now. Have not notice any death yet so don't know whether want to do something to my PH at this moment or not? But I will seriously consider your suggestion. Thanks bro.

[boxedfish]

I believe mineral plus will raise the gh

[revo_79]

Originally Posted by boxedfish

I believe mineral plus will raise the gh

Guess I will just add one or two drop of it when WC to prevent it raising even higher.

[sword28]

Originally Posted by revo_79

Guess I will just add one or two drop of it when WC to prevent it raising even higher.

one or two drop should not increase GH.

while we are at this topic on GH, maybe I share what I have read before.
experts and seniors here, please chip in and correct if it's wrong.

Low GH means water is soft. When water is too soft, after a shrimp molt, it will have difficulty forming new shell and this means there is no protection and its body is subjected to external virus/bacteria attacks. Or either that, the new shell formed will be soft and vulnerable to attacks. This explained why some shrimps die right after molting.

High GH means water is hard. And when water is too hard for too long, shrimp will develop hard shells and will have difficulty in molting. Shrimps need to have complete molting so that they can grow.

so in general, as long as GH is not too low or too high, then should be fine.
recommended GH is around 6.

That's my understanding of the effect of GH value. :

so bro revo_79, if yours is 8, I believe it should not be too bad. I think.
maybe after your shrimps molt, you can observe if the molt is complete/good?

[revo_79]

Hi bro sword28, thanks for your explanation. Have observed two molting so far, the empty shell seems to be complete. The problem is don't know which is the CRS that just molted as there is quite a few gone into hiding mode. So I guess i just have to keep on observing more molting of the CRS.