To Many Plants In A Tank?

Piti

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Hello. I am very aware that it is easy to overstock your fish tank with to many fish, but my question is, is it possible to overstock your tank with to many plants? Is there a marker one could use to measure the ammount? Like Plants inches per gallon sort of thing...? Is there a point where during the night all the plants and fish may suck all of the useable oxygen out of the water leaving some fish with hypoxia... i believe its called? Is there a way to avoid this, like extra airation during the night or is it a must to remove some plants or fish for the matter? Any help or insight on the subject would be very welcome.

On a side note, i just picked up a great book on a bunch of plants that got me curious to this, but it frusturated me to find out that there are 30 different species that look like amazon swords, some with different root systems, so they are not just a size varient. Oy... all i can say

Pat
 
I dont know about most of what you asked like the oxygen at night but I would guess if you have too many bunched together some wont get enough light and maywilt and die, same goes for lower leaves............
 
Hello. I am very aware that it is easy to overstock your fish tank with to many fish, but my question is, is it possible to overstock your tank with to many plants? Is there a marker one could use to measure the ammount? Like Plants inches per gallon sort of thing...? Is there a point where during the night all the plants and fish may suck all of the useable oxygen out of the water leaving some fish with hypoxia... i believe its called? Is there a way to avoid this, like extra airation during the night or is it a must to remove some plants or fish for the matter? Any help or insight on the subject would be very welcome.

On a side note, i just picked up a great book on a bunch of plants that got me curious to this, but it frusturated me to find out that there are 30 different species that look like amazon swords, some with different root systems, so they are not just a size varient. Oy... all i can say

Pat

Hi, there is isnt a set rule as far I know. Just remember the light, for instance, if too bunched together the lower leaves with die off (like stated abover) Also, flow can be affected if there is too much plant mass, flow is very important :good:

About the oxygen, im not expert but I dont think that'll happen. I currently have a planted tank, co2 injected, moderate fish stocking and I never run an airstone. I just have surface agitation for gas exchange and I havent had any problems :shifty:
 
Is there a point where during the night all the plants and fish may suck all of the useable oxygen out of the water leaving some fish with hypoxia...

This would never happen. Atleast, I've never ever heard it occuring. People gass out their fish by injecting too much CO2 rather than lack of oxygen.
High Co2 does not mean low O2. We want good levels of both Co2 and O2, which can co-exist in a tank.
Besides, we reccomend with planted tanks that you supply some water surface movement. Ripples are to be aimed for, but nothing to strong to "break" the surface. The slight ripples promote good gas exhange.
As the others have said, too many plants could block out too much light or decrease flow dramatically. Plant will very rarely die from lack of light though. It's usually lack of nutrients and/or CO2. We reccomend that the tank has good flow (minimum of 10 times the volume of the tank turned over every hour) FOr example, a 60litre tank would have a 600litres per hour of flow.
 
Thanks for the responses. It puts my tank at ease.

Edit
Misread Forum rules, gave credit to author, but was a book.
 
If that were a quote from a forum member and not from a book (and chance of litigation) I would tell you my opinion of that. lol

First off how many planted tanks have 'little aeration'?

Maybe 1% and they are Walstad old style tanks. They had no such problems!!! She does use movement these days but not for that reason.

O making it harder to get nutrients? I'm struggling with that too.


Is there such a thing as too many plants?

Yes there is and it looks great and the fish/livestock love it too :lol: :

top.jpg


AC
 
Wow... Okay, so with fish in a tank like that, I bet they love running around all the grassy wavey hiding places, until they hit an open patch and realise its a glass wall. Um... How would you clean a tank like that? Do you even need to worry about it? The subtrate, you wouldnt siphon the gravel would you to get rid of fish waste? Do the plants take care of that?
 
Um... How would you clean a tank like that? Do you even need to worry about it? The subtrate, you wouldnt siphon the gravel would you to get rid of fish waste? Do the plants take care of that?

Lots of flow and circulation prevents the majority of debris falling to the bottom of the tank. Instead it gets sucked into the filter. Which Andy cleans every month I think. Some may get stuck on the plants but you give them a good shake. Hence, no need to gravel clean, mayber hoover over the substrate once in a while.
 
Okay, so with fish in a tank like that, I bet they love running around all the grassy wavey hiding places, until they hit an open patch and realise its a glass wall.

Plants are not immovable objects. they are not solid. A little likea sponge it looks bigger than its actual mass and therefore a tank filled to the brim and covering the whole substrate still will have 75+ area of space. I've never seen a fish hit the glass looking for open space :) If you watch the fish in a planted tank you'll see they spend much more time in the 'undergrowth' than in the open!!! Not for fear although it does add security but for many other reasons. Lots of areas where food gets caught etc. Play chasing each other through the multiple 'chicanes' you get the idea :lol:

How would you clean a tank like that? Do you even need to worry about it?
I have no idea what cleaning is apart from water changes and filter cleaning. When I used to do water changes all I did was to close the in/out valves, take the hose connector from the filter and then open over a bucket. Therefore No I don't worry about it :)

The subtrate, you wouldnt siphon the gravel would you to get rid of fish waste? Do the plants take care of that?

I only used to use the siphone to refill the tank (with the bucket on a shelf above.) Yes the plants (and to a lesser extent the filter) take care of it. I didn't follow the rules of cleaning when I was Hi-tec. I would have gone lo-tec much sooner if I had to do 'gravel vaccing'. I basically ran it as a hi tec tank but with lo-tec procedures on maintenance (except for the 50% EI water changes.)

Lots of flow and circulation prevents the majority of debris falling to the bottom of the tank. Instead it gets sucked into the filter. Which Andy cleans every month I think.

Yes and no here. With the majority of livestock bodymass being bottom feeders most of the waste hits the substrate. Not much went through the water column so not too much in the filter. Just general water born stuff and the little fishies mess :)

Some may get stuck on the plants but you give them a good shake. Hence, no need to gravel clean, mayber hoover over the substrate once in a while.

This is where the circulation comes in for me. Just as it blasts the nutrient and CO2 around it also keeps plants moving and therefore no time for much to settle. Like I said above. I never followed the general hi tec maintenance. No plant shaking by me :) They shake from the circulation....permanently. For the hoovering you can chage 'once in a while' to 'once'. That 'once' was when I first got a tank in 2006 :lol:

Can everyone give up cleaning their tank under hi tec conditions? Not something I would suggest.

Is it that I am just such a genius? Mayeb but more likely I am just lucky and have the right mixture of fish and clean up crew allied with a fairly decent setup and balance in my tank :) Sometimes these things are stumbled upon by pure chance rather than any expert knowledge ;)

what plants do you have they sure are nice
What you see there from the top are Philippine Java Fern with the big leaves and Needle fern with the ong thin leaves.

Just to add to the 'picture tells a thousand words' theme this is about 2 thirds of the needle fern that came out of that 125ltr tank when I broke the scpe down. It sold quite quickly too:

needles.jpg


AC
 

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