Plants under strong current

[joe]

Tha above is usually not very well documented (as far as I've researched on the web lah). Understand that some plants do not grow well under strong current, whereas some plants flourish with good current flowing over them. Any websites or any advices on what plants to avoid placing under strong current (like output of filter)?

[juggler]

Websites - I don't think so. But the Christel Kasselmann book do state this requirement if it has been observed in actual ecological site.

In general, I believe moderate water currents would do. Too fast and some fish may not be able to take it. There are plants that can still flourish in stagnant waters.

[lorba]

from readings, i believe that balansae and bolbitis h. do well in strong current.

[Allen_1971]

Both Kasselman and Walstad document that under strong current many plants fair poorer... Generally if you have strong output from your filter, try and bounce it against your tank glass to dissapate some of the force.

[FC]

Should you guys think of slowing down the current, Nature Aquarium has the aka ANA styled output funnel. It is made of quality green transparent plastic. It can be fitted to both small and big output tubes. I paid only $3 for it, really value for money.

[Plantbrain]

Use a spray bar. Good even current is good, a nice evenly distributed flow along the bottom is good.

I've swam down any stream and rivers filled with plants and waded through still swamps, some plants are found in both places. Generally, long skinny strap like leaves are designed for current, but one fines Myriophyllum in the these fast flowing rivers and stagnant pools. Moss is often found in very high current.

Regards,
Tom Barr

[sherchoo]

IMO, I would agree on the idea of rainbar as a good water circulation is relatively important for:
- better filtered water
- creates natural flow as in rivers
- avoid BGA emergences

[hwchoy]

hairgrass seems to grow faster/better with a moderate current from a rainbar.

[PeterGwee]

Mmmm...somehow takashi amano don't recommend rainbar whichever position it is placed in as he says the nutrients will be oxidized by the jetting water?

[hwchoy]

herr? if the rainbar is under the water surface there should be no oxidising right?

[Hazel]

Hi, I have just installed an external cannister filter (TOM Brand) for my 2ft (20 gallon) tank. With the shower bar provided, there seems to be a strong current, swirling some of my small fish around (tetras, SAE etc). I have tried to point it in different directions, but the current still seems too strong. Should I connect a CO2 reactor, not only to grow plants, but also to slow down the current?
Or should I try the funnel at Nature Aquarium, and continue to use an airstone for the CO2 (DIY CO2)?
Thanks.