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It's just cosmetic, ADA says you should top off the regular type with the powder type for a better look. I don't recall seeing anything about functional differences. I guess it's down to your...

I'M BACK!

Hello, dear fans :)

The 2 weeks turned to 3, but the good news is that I'm now a certified diver. My wife hopes this will help with my aquarium maintenance :D Here are some pics from...

Hi,

There is at least one P nicholsi juvenile in the tank. It is about 2 cm long and does a wonderful job of hiding - yesterday was the first time I saw it. Both females are holding again, so I...

Hi Bio, Client,

My apologies to you both for apparently abandoning my own thread in the middle of a heated discussion. Not that I can add anything when you guys go that in-depth. It was an...

ORP slightly up in today's measurements, although the difference is too small to celebrate yet:

t=25.5°C
KH=76 ppm=4.3 dKH
pH=6.7
CO2=39 ppm
TDS=251 ppm
ORP=221 mV
DO=7.51 ppm
NH3/4=0.05 ppm

Hi Bio, client,

Bio, I cleaned up the algae as well as I could and I did a water change. I can't raise the lights more (they are already as high as I could put them) but I added a bunch of new...

Hi Bio,

I kept up the H2O2 treatment for a week now. That + the AC seem to have stopped the crash. The destruction of KH has practically stopped.

That's the good news.

The critical values...

Hi Bio,

I have the LaMotte 4491-DR Alkalinity Test Kit.

http://img694.imageshack.us/img694/7457/img1002m.jpg

Florin

Mission acknowledged Sir! http://img546.imageshack.us/img546/9223/smileysoldiersaluting.gif

Hi Bio, thanks for the explanation.

Was it not for that pesky +0.15 pH induced by the AC and/or the H2O2, I would proudly report a pH of exactly 6.6. Here are today's values:

t=26.5°C
KH=55...

H2O2 treatment started.

Premium ROX 0.8 Aquarium Carbon bag inserted in an awkward position under the sump's own sponge.

One of the new nerite snails is now missing a patch from the shell -...

Hi Bio, client,

If my calculations are correct, I need approx 0.8 tsp of baking soda to raise KH with 1 dKH in my ~130 liters of water. I added that quantity today via 2 x 0.4 tsp, two hours...

Hi Bio,

I need to film this to be more explicit, but the problem is not that I feed too much, rather that the fish eat only from the upper part of the water column. So whatever food sinks below 10...

Hi Gerry,

I very much wish I could explain it!

Shrimp are nowhere to be seen since I added the fish to the tank. Maybe some of them are still here. But even before the fish, they did not...

Hi,

The substrate blackness did not go away completely, I see some traces of it appearing briefly.

The plant melting continues, with only the Crinum and Nimphaea affected. I did not remove the...

I'm not sure if a week's worth of evaporation is enough to be noticeable but yeah, it does rise. It's just the water that evaporates, not the KH it contains. The KH stays in and accumulates as you...

How do you compensate for evaporation? If you top off with normal water, GH and KH will rise slowly. This will become noticeable if you go for longer periods without water changes.

Hi Bio,

Close :) The guy selling them calls the water flea "Daphnia moina" but they're small and Google insists that Daphnia and Moina are different species - I think mine are Moina.

You can...

Hi Henry,

They use Chlorine, I asked.

Thanks,

Florin

Hi Bio,

I am not one to give up easily but I can't help thinking aquaculture is not my thing.

Anyway, ...

The green (blue-green?) stuff is retreating from above the substrate, where it had...

NH3/4=0.02 ppm
NO2=0.009 ppm
NO3=4.0 ppm
KH=64 ppm=3,6 dKH

Red site:
t=25.5ºC
pH=6.63
TDS=205 ppm
DO=7.68 ppm

Hi Dan, nice to see you on this forum as well!

Tom recently had an encounter with hair algae, check it out here, that thread is a great read anyway with or without the algae fight:...

Hi Bio,

The infected fish died yesterday. In the evening he was moving with difficulty, preferring to just sit on a leaf. He was having trouble floating (when he got off the leaf he sunk, and...

Hi Bio,

Today I came home and.... I can't see any shrimp anymore. OK I saw one, hidden under a rock (literally). The 2 Amanos are no longer, the 30+ RCS are no longer.

They couldn't have been...

Hi Bio,

I have :) but I couldn't get a clear picture. Here are some with contrast exaggerated to highlight the disease:

http://img254.imageshack.us/img254/1843/img3498cr2.jpg
...