[Alex_Salonica]

Σπύρο υπάρχουν πολλοί μύθοι στο χόμπι μας αλλά το συγκεκριμένο δεν είναι μύθος και συμφωνούν πολλοί γαριδάδες σε ολόκληρο το κόσμο σε αυτό. Στο προηγούμενο ποστ μου ανέφερα τους λόγους γι αυτό.

Μιας και είχες ποστάρει από τον Mustafa Ucozler σε προηγούμενο θέμα σου παραθέτω και την γνώμη του στο θέμα μας που βρίσκει τη πλειοψηφία σύμφωνη και είναι ένας από τους βασικούς λόγους που χάνει κάποιος τις γαρίδες του για "άγνωστο" λόγο.

You changed too much water at once

You perform a very large water change. You notice dead shrimp in your tank a day or two later.

Suggestion: Do not change too much of your shrimp tank water at once. There are several reasons for this. The first one is especially important in the winter. During all the seasons but summer very cold water tends to come out of the tap. If you change too much water all at once and refill it with the ice-cold tap water, your shrimp will experience a temperature shock and many of them will die over the next few days or weeks. For this reason make sure that you either change very little of the water or, if the chemical composition of your tap water is the same as your tank water *and* you absolutely need to perform a large water change, you can let the water sit for a while and adjust to room temperature before adding it to your tank. If your tank water is chemically different from the tap water, this will not work as well. If you have soft tap water, as I do for example, and add crushed coral to your tank to increase PH buffering capability, your PH, KH and GH will usually be higher than that of your tap water. Hence, if you perform a large water change, the shrimp will experience a shock due to the different chemical composition of the new water. Therefore, it is generally best to only change very little water (15-20%) on a weekly or bi-monthly basis.