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crestere PH

 
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hans
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Joined: 23 Oct 2008
Posts: 127
Location: Bucuresti, Crangasi

PostPosted: Sat Apr 18, 2009 9:09 am    Post subject: crestere PH Reply with quote

Salut. De curand am primit un PH-monitor electronic si, am observat urmatorul lucru: cand schimb apa ( aproximativ 30% din cei 180 l, schimb pe care-l fac o data la 2 zile ) creste PH-ul de la 6.6 la 6.8. Intrebarea mea este: cam cat afecteaza pestii aceasta crestere - adica sa schimb mai putina apa si mai des a.i. cresterea sa fie doar de 0.1?
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harry-ab
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Joined: 05 Apr 2009
Posts: 195
Location: Sebes-Alba

PostPosted: Sat Apr 18, 2009 10:45 am    Post subject: Reply with quote

Pentru niste pesti sanatosi nu cred ca variatiile de pH de 0,2-0,3 sa aibe o actiune atat de stresanta. Dovada sta faptul ca toata lumea face schimburi de apa, nu?
La mine daca schimb cam 30% din apa ph-ul se duce in sus cam cu 0,4-0,5 dar pesti sunt de obicei foarte vioi dupa schimbul de apa, cea ce ma face sa cred ca nu le prea pasa de aceasta variatie.
Sa iei un discus tinut la pH 7,2 si sa il muti direct intr-o apa cu pH-ul 6, asta e o cu totul alta poveste... icon_mrgreen
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drdiscus
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Joined: 10 Feb 2009
Posts: 416
Location: constanta

PostPosted: Mon Apr 27, 2009 10:30 am    Post subject: Salut Reply with quote

Corect.Variatiile mici de ph, de genul 0,2-0,7 nu pun probleme.
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qumatru
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Joined: 03 Apr 2009
Posts: 103
Location: Iasi

PostPosted: Mon Apr 27, 2009 12:46 pm    Post subject: Reply with quote

eu am facut azi schimbul. de la 6,07 la 6,68 a crescut... dar cica e ok icon_smile
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acvailie
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Joined: 04 Feb 2009
Posts: 121
Location: Cluj-Napoca

PostPosted: Mon Apr 27, 2009 7:10 pm    Post subject: Reply with quote

La variatii atat de mici discusii nu au nici o problema, doar daca nu se schimb ceilalti parametri substantial. Fa testele de apa inainte de a schimba apa si dupa, si vezi ce valori ti-au esit.
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dragos
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Joined: 27 Mar 2008
Posts: 631
Location: FOCSANI

PostPosted: Tue Apr 28, 2009 6:04 pm    Post subject: Reply with quote

in general am observat ca nu e o problema nici la variatii mai mari ale ph daca acestea se fac treptat ( citeva ore ) . De ex am transferat niste discusi din ph 5,5 in ph 7,8 in aproximativ o ora si jumatate adaugind cite putina apa si nu au avut probleme asa de mari cum ma asteptam . Am fost nevoit sa fac asta deoarece fusesera transportati fara oxigen in punga si erau pe duca.....
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