Overdriving Lights

[Green Baron]

I don't think the cause of the green water is due to the ODNO.
Kwek Leong was using 6 FL tubes before and now he is using only 4 tubes - 2 normal FL and 2 ODNO FL. In fact the wattage is probably slightlyless than before because the output from 2 ODNO tubes is actually slightly less than 4 normal tubes.

I believe the green water is casued by copper content and death of BB as suggested by Peter.

[FC]

KL told me that it is hard to create/cultivate green water algae, noone knew exactly what start such algae. Now he got it without asking .

Ok, perhaps, may be a little excess of cu is the key to getting such algae?

So, those who wish to cultivate daphnia, you got the clue already?

[TyroneGenade]

Cu will kill Daphnia dead.

[PeterGwee]

Its not copper causing greenwater..its ammonia. Want green water? Add some source of ammonia into your tank and lit it with loads of light and poor CO2.

Regards
Peter Gwee :wink:

[whuntley]

Its not copper causing greenwater..its ammonia. Want green water? Add some source of ammonia into your tank and lit it with loads of light and poor CO2.

Regards
Peter Gwee :wink:

Amen, Peter.

I grow lots of it to feed babies (and Daphnia whenever I find some) A sprinkle of good plant food like "Miracle Grow" and some sunlight is usually all it takes. [A proven "starter" may help get the better species in control. IDK.]

Wright

[timebomb]

Hi, guys,

My tank is still hazy but it's clearing up. Now, I can see the moss wall at the back of the tank although it's still a bit blur. I couldn't find any Ceratopteris like what Tyrone suggested but I bought a pot of Hygrophila difformis which seems to help clear up the water.

I think the water turned green because the bacteria in my filters were killed off by the copper. I actually only over-drove one set of lights. In other words, the overall lumens wasn't doubled but was actually decreased since I took away one set of 2 tubes. The problem with my tank is I make so many changes to the equipment I don't know what is causing the problems.

Loh K L

[PeterGwee]

KL, filters only act as a backup in case your plants fail to grow well due to you not keeping up on things like CO2 or nutrients. But since you do not like the testing side of things (only for pH and KH) and does not dose much nutrients except for occasional traces, you would have to trial and error through your method. Main thing is to focus on the plants needs and get them to grow well. Once the plants are happy and growing strongly, your tank would be back into shape again.

Regards
Peter Gwee :wink:

[Yinhui]

Here in Ukraine, the russians uses these Compact Fluorescent Bulbs. They are rated at 40w but acccording to the box, they equivalent to 200w in normal bulb or something like that...

Currently i have 8 of these mounted on the hood, they can be quite hot but with an exhaust fan (those used on PC) i think it may not be a problem. As for me, the weather here is cold most of the time, so maintaining a 25-27C water temperature requires a heater in winter. hehe.

8x200w=1600w of light in a 100L aquarium. even with if it does not produce 200w for a 40w bulb, i still have 8x40=320w. Plenty of lights....

everything seems to grow to a gigantic size in my aquarium. so i limit their growth rate by cutting out CO2 all at once, or else i'd have to trim the plants every 5 days or so. i also use less fertilizers.

the fertilizers i use here are those russian home recipes (cannot think of a better way to put it), in small 1cm balls which costs about RM0.35 (roughly USD0.10). they seem to outperform all those fertilizer i buy from SERA n JBL....

Low Yinhui