dingweding
Seedling
- Joined
- 2 Feb 2009
- Messages
- 4
I set up a new plant tank a month ago. 90L, pressurized CO2 with glass disffusor. 2 bubbles per second.
the light is 2x 24w 6500k and 1x24w 4000k. Is on 4 hours , off 2 hours then on 4 hours again.
i try to dose EI in the first two weeks, as there is some shirmps in the tank, i worried big water change will stress them, thus i only did 20% water change per week, i cut down the dose to twice per week, with less amount as well.
the first a few days, plants goes fast, but never pearl. Soon all the plant stop growing, some fragile one like HC melt and died.
i thought the problem is too much nuritient accumulated? but ppl said that should not be the problem.
the tank now has some fuzzy and hair algea, but not a lot.
i did a 60% water change last sunday, did not add any fert, but add some surface agitation.
just test my tank water, as London water is very hard.
tap water PH is 7.7 , GH 17, KH 11, NO3 50ppm
tank water PH 7.4, GH 12, KH 10, NO3 0ppm
i was told plant can not do well in such hard water, will this be the problem?
As there is already NO3 in the tap water, should i still dose KNO3?
Meanwhile, the water is so hard, should i still add Mg?
Many thanks
the light is 2x 24w 6500k and 1x24w 4000k. Is on 4 hours , off 2 hours then on 4 hours again.
i try to dose EI in the first two weeks, as there is some shirmps in the tank, i worried big water change will stress them, thus i only did 20% water change per week, i cut down the dose to twice per week, with less amount as well.
the first a few days, plants goes fast, but never pearl. Soon all the plant stop growing, some fragile one like HC melt and died.
i thought the problem is too much nuritient accumulated? but ppl said that should not be the problem.
the tank now has some fuzzy and hair algea, but not a lot.
i did a 60% water change last sunday, did not add any fert, but add some surface agitation.
just test my tank water, as London water is very hard.
tap water PH is 7.7 , GH 17, KH 11, NO3 50ppm
tank water PH 7.4, GH 12, KH 10, NO3 0ppm
i was told plant can not do well in such hard water, will this be the problem?
As there is already NO3 in the tap water, should i still dose KNO3?
Meanwhile, the water is so hard, should i still add Mg?
Many thanks