水草情迷

我係水草缸(ADA黑泥底,pH 6.2)度既虎紋蝦，最耐都只可以養到兩個星期。但係我放係裸缸(水喉水, pH7.度養既虎紋蝦，反而養左兩個月到依家都未死，究竟係咪合適虎紋蝦的水質應該係弱鹼呢？

你有无转水啊？PH6。2那个。

你指對水？如果係的話，我有做囉！

我屋企既水喉水pH都有成7.8架，我又無落pH down，又無落水質穩定劑，但係ｄ蝦就生存得耐過草缸好多好多！

I used to have pH>7 and kH ~4/5, my 虎紋蝦 bred till the whole tank is full of them (can counted one already is >100, start with 15). Of course summer time they disappeared (died) bec temp too high. I was able to breed them easily for 2 years.
But recently i wanted to grow sun-grass, so pH down, kH down, but 虎紋蝦 also hard to keep. Recently i have added 虎紋蝦 and bee shrimps (bought 4 bags already at different time, $30 @bag) but each time, most disappeared, now only a few left. So i suspect they don't like low pH and kH water.

Anyone have similar experiences? or have successfully breed them in low pH/kH water?

Alan兄：
我都懷疑虎紋蝦根本唔適宜放係酸水缸度養！我係酸水缸度養到既蝦，現時為止只有星點珍珠！

I think it should be like that:
Shrimps’ living condition is –––
1) absolutely clear water (means no dust going around)
2) clean water (clean water means with low NO2, NO3, etc)
3) high oxygen
4) stable temperature (24ºC~26ºC)
5) low-lighted to dark environment, so that they will feel more save
6) with enough wholes (on wood or rocks, etc) or density vegetation for them to hide
5) with not too much large-sized fish as they will attack the shrimps

1, 2, 3 and 4 is very important for shrimps living.
However, 1 and 3 is difficult to do in planted tank. Because when you have constructions with it, especially for those which used mud, the dust will go everywhere, and they are much enough to kill shrimps. And for a good planted tank, CO2 added is important, but it will easily kill shrimps, especially in night time.

Acid water doesn’t mean that they are not good for shrimps, and that is not the main cause of death of shrimps.
Just my option!

第１點我覺得有不適用，因為我係個草缸度養既星點珍珠，好多時都無撈起就剪草，ｄ草拔起時都攪到好大塵，我反而驚條棋盤鯛死多過ｄ蝦；

第２點都有問題，蝦都食腐肉既，腐肉都會散發出亞蒙尼阿，個人認為蝦承受力未必想象中咁低。而且我係孔雀魚BB祼缸度養左幾隻虎紋蝦，有時我會過左第二日先清理食剩既食物，水容量小且魚ｂｂ密度亦高，但都養左虎紋蝦好耐。

Basically agree with 雪山飛狐 on 1 & 2:
1) not really that critical, uprooted plants b4 many times, dust everywhere but still didn't bother to change water, 虎紋蝦 bred like crazy.
2) shrimps really like dead fish! Also, NO3 was added to tank regularly to 5-10ppm, 虎紋蝦 still bred like crazy.
3) Yes, but CO2 injection, even at night, is never a problem b4 (of course level not too high). Healthy planted tank is oversaturated with O2, even with addition of CO2.
4) up to 29C, 虎紋蝦 still ok, but above 30C, they slowly disappeared (died, i presumed). My shrimp population goes from >100 to 0.
5) When they get used to the light level, high light is not a problem. My 虎紋蝦 used to swim around crazily, competing with the fish for food when i feed pellet food. They also come out freqeuntly, crawl around and on top of plants.

I never thought breeding shrimp was a problem, cuz in two consecutive years, my 虎紋蝦 went from 10 to > 100 b4 the high temp in summer killed them off. But then my water was slight alkaline (pH7.4) and kH 5.
But recently, I lower pH to 6.5, kH<3, starts having problems.
So my guess is low pH and kH not good for sensitive shrimps like 虎紋蝦 and bee shrimp. Amano shrimps are hardy and no problem.

Another observation, the planted display tanks in fish street doesn't seems to have 虎紋蝦 or bee shrimps in them! And i believe their display tanks are held in a low pH and low kH conditions.

可能唔够氧噶，因为草港加CO2嘛。

如果養水草蝦加入吸氨石是否會好些呢？