水草情迷

Control bottle: Tank water(5/5)
Test bottle: Tank water(4/5) with 黑鋼沙(1/5)
initial reading:~6.4
Test time: 7 days
Test tool: Sera pH test kit
Result:will be posted on 24-june-05

ph will rise or not ?

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友朋知所剔，何患少交遊。

i think pH will increase sightly

btw, have u record the initial pHs?

如果黑鋼沙是中性的,那麼不應對酸鹼度有影響,pH值應該不變.

如果<----

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友朋知所剔，何患少交遊。

我覺得應該測試 GH 同 KH。 因為—般情況下 GH 升高 KH 都會同時應該升高， 而 KH 係草缸 pH 既主要 Buffer。 如果只測試 pH， 應在不停打氣下進行， 否則細菌量會對 pH 有幾大既影響。

我試過同樣測試，Seachem Flourite 係一般情形下唔會對水質有可測量既影響， 但係半年之後， GH 由 2 上升至 11， KH 由 1.5 上升至 5.5。

i only have ph test kit
so cannot test kh and gh

both bottle take the same water source, and bottle is enclosed.
may be next time try boiled water with boiled sand.

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友朋知所剔，何患少交遊。

i got 10 kG these sand
forgot the name, just remember $35 for 5 Kg
slightly blue bag, and a map with some marine fishes in the front.

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友朋知所剔，何患少交遊。

唔該晒 15 !
咪即係話黑鋼沙好鹼!!!

it is " sze sun" only, others not tested

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友朋知所剔，何患少交遊。

What is the meaning of "sze sun"?

品牌"sze sun"

you finished your test?

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友朋知所剔，何患少交遊。