The Geen Water

Originally posted by Demekin
So much arguement here ... let's go back to the original posting by bro xerovix ...

bro laser suggested that 100L per fish, so bro xerovix counter propose something like sinster glass or ceramic rings to increase the fish load.

Now ... let's argue on this points ...

1. Does green water alone has by-product ? How ?
2. What are the problems with lesser water vol per fish ? Why ?
3. How a mix of filtration media and green water can increase fish load ?

Lemme try to answer from what I learnt here and there hor:-

1. Not suppose to have any harmful by-products. But I'm certain traces of bb are presence simply becoz there are ammonia and bb can cultivate on any surface, especially porous ones. Not a big problem if you use a plastic tub and clean it thoroughly every week.

2. I think when Alvin make that statement, he probably was playing it safe. More fish equates more ammonia equates more algae. Then on cloudy days, you might not get enough sunlight to penetrate the intense green water, resulting in death of algae, and dead ones can be toxic. So... if you use natural lighting, a low fish stock level is safer to prevent too much algae growth to cushion the impact of less sunny days. I dun think Alvin is too concern over aeration in this regards since an air-pump is cheap and is a reliable way to overcome the problem of suffocation.

3. It's an idea. One that could work but it is difficult to fine tune the population of bb versus algae. I wouldn't do it. Although algae can consume nitrate produced by bb, two problems still remain: (A) Plants (although I read Algae is actually a bacterial) prefer ammonia over nitrate. (B) There's still nitrite that are in transition to nitrate that is presence in the water.

[Fire87]

what about temperature in reference to oxygen saturation in water?

Is it right to say, if a tank of water is put under hot sun for a day then the water in the tank is consider as green water, not matter it look green or not?
If not hot long we need to put it?

Thus, many a pond owner has woken up the morning only to find many of his/her prize fish dead in the water -- even though aerators and filters were working!. The largest -- and therefore more valuable fish - - always are the first to die. Some assume that vandals dropped poison in the pond -- or that a mysterious disease was introduced. In fact the culprit is oxygen depletion; the larger fish suffer proportionately more.

http://www.arborman.com/algae.htm

Originally posted by Fire87
what about temperature in reference to oxygen saturation in water?

Oxygen burnt is a big concern and it seems there's no way to tell until the damage is done. Luckily I was told the damage can be repaired with medication instead of being deadly. Phew!

I'd say just try to keep the tub cool. Goldies prefer it that way. So irregardless of the oxgen saturation level, use a thermometer to check the water temperature just to make sure your fish are not stressed.

I asked bro ET before and the temp was well under controlled in his bright balcony.

Originally posted by dannyWong
Is it right to say, if a tank of water is put under hot sun for a day then the water in the tank is consider as green water, not matter it look green or not?
If not hot long we need to put it?

No lah. Tank water that is not green in tint is not green water. Green water is green becoz there are tones of unicellular algae in it. Algae being green in colour, makes the water appear green.

If you leave the tank un-filtered, just wait about 4-5 days for the water to turn green lor; one day not enough lah.

You haven't gotten the metal halide lamp yet?

You haven't gotten the metal halide lamp yet? [/B][/QUOTE]

Not yet buy. I put on top 2 3ft double sided lamp, on for 5 to 6 hrs a days. Total 4 3ft lamp can help are not?

greenwater needs plenty of sunlight and ammonia...
if u put a tub of water w/o fish inside, dun think of getting greenwater....unless birds fly pass and shit into you tub....
hahahahaha.....

Originally posted by dannyWong
Not yet buy. I put on top 2 3ft double sided lamp, on for 5 to 6 hrs a days. Total 4 3ft lamp can help are not?

Why you stopped at 5-6 hours leh? Run them for 24 hours until you are sure your aqauarium lamp is strong enough to cultivate and maintain green water.

BTW, how many watts in total you have? If you add them up, it's probably not energy efficient for the amount of light generated compared to a MH lamp.

Originally posted by happybuddha
Why you stopped at 5-6 hours leh? Run them for 24 hours until you are sure your aqauarium lamp is strong enough to cultivate and maintain green water.

BTW, how many watts in total you have? If you add them up, it's probably not energy efficient for the amount of light generated compared to a MH lamp.

Because I came home at 7pm turn on until 12am plus ma. Don't want to let it on the whole day when no one is at home. Scare of fire accident.
"FL30SBR-FLOW-LUX"- "Make in taiwan". Is it means 30watt per lamp? Then total up is 120watt enough enough or not?