[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Waterexchange - only if animals in the tank?

there ist no doubt of frequently exchange the tankwater if animals (fish
a.s.o.)are in. Is this necessary too in case of an *only* planted tank (no
animals inside)? For my understanding, in an only planted tank is no
generation of NO3, PO4 (if the fertilizer is suitable for the tank) and
therefore no need to change water. Or do salts of fertilizer, which are not
absorbed by plants, change the ratio of ions in the water, so, that after a
time, the water gets bad for plants? In this case, water exchange would be
important too.
I ask the experts for an answer. Thank you and best regards, Klaus Haber