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#1
19-02-2003, 02:45 AM
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how much plant is too much plant for fish at night?
Hi,
another newbie ponderings... I've been searching for any indication of how to determine when you have too many plants in the tank that may actively compete with fish for oxygen at night.. without much success. is this something I really have to worry, or not worry? All the references I have been able to dig up only mentions that plants will compete for oxygen at night, but doesn't really say how quickly the oxygen will get depleted... Also, how much light the plants need before it completely stops producing oxygen (dim dawn light? room light? or only with bright CF light?) I guess I'm thinking, what happens if the power goes out at night and my powerheads stop circulating water in pitch dark? The way I have the light timer, there is probably only about 6-7hrs of total darkness before some outdoor ambient light starts lighting up the room. Right now in my 37G tank (essentially a tall 29G) I have 4 very large sword plants (2 amazon, 2 ozelot), several crypts, big anubias barteri nana (I thought they were supposed to be short! mine is at least 7" tall from rhizome to tip of leaf!), few bunches worth of stem plants in it (foxtail, lysmachia, rotala indica), and some apongetons in it (boivi--whatever, and two small lace plants). eventually I'll load this tank to maximum recommended (30" worth of fish), but wanted ot make sure oxygen competition at night is nothing I really need to worry... so I do need to worry... linda |
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#2
19-02-2003, 03:51 AM
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how much plant is too much plant for fish at night?
I wouldn't worry. I have a well planted 55 gal with a high load of fish
without any problems. Bob "linda mar" wrote in message ... Hi, another newbie ponderings... I've been searching for any indication of how to determine when you have too many plants in the tank that may actively compete with fish for oxygen at night.. without much success. is this something I really have to worry, or not worry? All the references I have been able to dig up only mentions that plants will compete for oxygen at night, but doesn't really say how quickly the oxygen will get depleted... Also, how much light the plants need before it completely stops producing oxygen (dim dawn light? room light? or only with bright CF light?) I guess I'm thinking, what happens if the power goes out at night and my powerheads stop circulating water in pitch dark? The way I have the light timer, there is probably only about 6-7hrs of total darkness before some outdoor ambient light starts lighting up the room. Right now in my 37G tank (essentially a tall 29G) I have 4 very large sword plants (2 amazon, 2 ozelot), several crypts, big anubias barteri nana (I thought they were supposed to be short! mine is at least 7" tall from rhizome to tip of leaf!), few bunches worth of stem plants in it (foxtail, lysmachia, rotala indica), and some apongetons in it (boivi--whatever, and two small lace plants). eventually I'll load this tank to maximum recommended (30" worth of fish), but wanted ot make sure oxygen competition at night is nothing I really need to worry... so I do need to worry... linda |
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#3
19-02-2003, 03:51 AM
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how much plant is too much plant for fish at night?
I wouldn't worry. I have a well planted 55 gal with a high load of fish
without any problems. Bob "linda mar" wrote in message ... Hi, another newbie ponderings... I've been searching for any indication of how to determine when you have too many plants in the tank that may actively compete with fish for oxygen at night.. without much success. is this something I really have to worry, or not worry? All the references I have been able to dig up only mentions that plants will compete for oxygen at night, but doesn't really say how quickly the oxygen will get depleted... Also, how much light the plants need before it completely stops producing oxygen (dim dawn light? room light? or only with bright CF light?) I guess I'm thinking, what happens if the power goes out at night and my powerheads stop circulating water in pitch dark? The way I have the light timer, there is probably only about 6-7hrs of total darkness before some outdoor ambient light starts lighting up the room. Right now in my 37G tank (essentially a tall 29G) I have 4 very large sword plants (2 amazon, 2 ozelot), several crypts, big anubias barteri nana (I thought they were supposed to be short! mine is at least 7" tall from rhizome to tip of leaf!), few bunches worth of stem plants in it (foxtail, lysmachia, rotala indica), and some apongetons in it (boivi--whatever, and two small lace plants). eventually I'll load this tank to maximum recommended (30" worth of fish), but wanted ot make sure oxygen competition at night is nothing I really need to worry... so I do need to worry... linda |
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#4
20-02-2003, 12:08 AM
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how much plant is too much plant for fish at night?
Ok. Thank you for the reassurance!
linda "Bob Alston" wrote in message .. . I wouldn't worry. I have a well planted 55 gal with a high load of fish without any problems. Bob "linda mar" wrote in message ... Hi, another newbie ponderings... I've been searching for any indication of how to determine when you have too many plants in the tank that may actively compete with fish for oxygen at night.. without much success. is this something I really have to worry, or not worry? All the references I have been able to dig up only mentions that plants will compete for oxygen at night, but doesn't really say how quickly the oxygen will get depleted... Also, how much light the plants need before it completely stops producing oxygen (dim dawn light? room light? or only with bright CF light?) I guess I'm thinking, what happens if the power goes out at night and my powerheads stop circulating water in pitch dark? The way I have the light timer, there is probably only about 6-7hrs of total darkness before some outdoor ambient light starts lighting up the room. Right now in my 37G tank (essentially a tall 29G) I have 4 very large sword plants (2 amazon, 2 ozelot), several crypts, big anubias barteri nana (I thought they were supposed to be short! mine is at least 7" tall from rhizome to tip of leaf!), few bunches worth of stem plants in it (foxtail, lysmachia, rotala indica), and some apongetons in it (boivi--whatever, and two small lace plants). eventually I'll load this tank to maximum recommended (30" worth of fish), but wanted ot make sure oxygen competition at night is nothing I really need to worry... so I do need to worry... linda |
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#5
20-02-2003, 12:08 AM
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how much plant is too much plant for fish at night?
Ok. Thank you for the reassurance!
linda "Bob Alston" wrote in message .. . I wouldn't worry. I have a well planted 55 gal with a high load of fish without any problems. Bob "linda mar" wrote in message ... Hi, another newbie ponderings... I've been searching for any indication of how to determine when you have too many plants in the tank that may actively compete with fish for oxygen at night.. without much success. is this something I really have to worry, or not worry? All the references I have been able to dig up only mentions that plants will compete for oxygen at night, but doesn't really say how quickly the oxygen will get depleted... Also, how much light the plants need before it completely stops producing oxygen (dim dawn light? room light? or only with bright CF light?) I guess I'm thinking, what happens if the power goes out at night and my powerheads stop circulating water in pitch dark? The way I have the light timer, there is probably only about 6-7hrs of total darkness before some outdoor ambient light starts lighting up the room. Right now in my 37G tank (essentially a tall 29G) I have 4 very large sword plants (2 amazon, 2 ozelot), several crypts, big anubias barteri nana (I thought they were supposed to be short! mine is at least 7" tall from rhizome to tip of leaf!), few bunches worth of stem plants in it (foxtail, lysmachia, rotala indica), and some apongetons in it (boivi--whatever, and two small lace plants). eventually I'll load this tank to maximum recommended (30" worth of fish), but wanted ot make sure oxygen competition at night is nothing I really need to worry... so I do need to worry... linda |
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#6
20-02-2003, 04:54 AM
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how much plant is too much plant for fish at night?
Watch your fish in the morning, just before the lights go on. That's when
they'll show distress, if there's not enough oxygen. I guess I'm thinking, what happens if the power goes out at night and my powerheads stop circulating water in pitch dark? A power outage is trouble for a fishtank, whether it's planted or not. (Unless you're Diana Walstead. ;-) I'd say a planted tank has an advantage over an unplanted one. Leigh http://www.fortunecity.com/lavender/halloween/881/ |
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#7
20-02-2003, 04:54 AM
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how much plant is too much plant for fish at night?
Watch your fish in the morning, just before the lights go on. That's when
they'll show distress, if there's not enough oxygen. I guess I'm thinking, what happens if the power goes out at night and my powerheads stop circulating water in pitch dark? A power outage is trouble for a fishtank, whether it's planted or not. (Unless you're Diana Walstead. ;-) I'd say a planted tank has an advantage over an unplanted one. Leigh http://www.fortunecity.com/lavender/halloween/881/ |
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