TwoTankAmin
Fish Connoisseur
daize- I thought we had put it to rest as well. You brought up Clive and his comments. Those comments are only mostly pertinent to heavily planted higher light tanks. His knock on Tropica is another story.
Further I do not agree with your conclusions about tanks with lots of slower growing type plants. When one fills a tank with these types of plants there is an affect on the fish stocking levels that are possible. Reduce the potential fish load and you reduce the need for bacterial colonies in terms of their size. Consider what species of fish have the highest waste and ammonia output and see how many of them we find in heavily plants tanks. This entire thread really has to do with the fish even though it is about plants. the goal of cycling a tank with or without plants is to make it safe for the fish. So i find it impossible to separate the two. I had fewer and smaller fish in my high tech planted 50 gallon tank than I had in many smaller tanks with fewer or no plants.
So I am going to try yet again to explain it to you. Fill up a tank as you describe, you pick the plants to insure they are as far from high light and what you consider to be important silent cycle plants as you like. Just limit the selection to the sorts of plants the average fish keeper doing their first planted tank might select. And when you are all done and the plants are in the tank without any ferts added, and no supplemental co2 either, and let them settle in for 2 weeks, and then do this:
Dose sufficient ammonia to reach 2 ppm and then test in 24 hours. If you get 0/0, fully stock the tank. If you get some low level of ammonia and/or nitrite. You can likely do one more ammonia dose when things are near 0 and that will do the trick and you can fully stock. If you don't want to bother with more additions, you can do a gradual stocking and this will let the tank finish up on its own. You can likely fully stock, but play it safe and do 2/3-3/4 stocking. If this is a bit too much, the ammonia and nitrite levels should still be low enough as not to cause harm and they will zero out pretty fast.
If you test between .5 ppm and 1 ppm of ammonia, you have a ways to go and another ammonia dose is in order for sure- 2 ppm again. Or you can again opt not to add more ammonia and start stocking. But now you need to consider only doing a 1/2 stocking and then doing a couple of more additions over the next 4-6 weeks. Finally if you read ammonia at over 1 ppm, the plants and any bacteria are not really enough and more bacteria is certainly needed. So you will have to do more than one or two additions likely. The choice to add some fish right away and finish stocking over time or to wait until fully "cycled" and add them all in one go is up to the fish keeper.
All of this assumes one has done nothing else to get bacteria into the tank. But I wonder how many people will fill a tank heavily with slow or fast growing plants for their very first tank. they are likely working and their second or third tank. So the odds are they can do some seeding easily and head off this problem from day one. They are able to have a close to instantly cycled tank. And from the perspective of this thread, there is nothing to discuss.
My point is that sometimes an ammonia dose doesn't just serve to cycle a tank. It can also serve as a diagnostic test which gives us an idea of the capability of the tank to handle ammonia etc. This diagnostic test replaces a big fat book about every plant out there and how much ammonia it might consume or if ammonia can harm it. Nor do we get our plants with a label stating they contain X nitromonas, Y nitrospira etc. But none of this really matters. What matters is how fast the tank processes 2 ppm of ammonia.
Just as an fyi, my best guess is if this discussion were about a Walstad tank, the amount of ammonia I would suggest one dose and test with is about .5 ppm. The fish load in her tanks are so minimal the tanks are likely good to go for that fish load as soon as they are set up and planted. In the end, as far as I am concerned, this discussion is really not about the plants, it is about the fish and what it takes to insure they are safe.
Go to the Barr Report Forum and there are some 29 sub forums directly dealing with in tank issues. 28 are plante related and one is Inverts- not one are for discussing fish. Now head onto any site about fish. Check out theplantedtank.net. They have a single sub-forum for Fish and one for inverts. Whether its sites like this one or AquariaCentral, or its a more specialty type site, what you will see is many sub forums about fish and at least one and usually several about plants. This site has fw fish, sw fish, critters in both and then it has a decent planted tank section. Most specialty sites for species which don't eat plants, will have some space devoted to plants that work with such fish. To me this points up a major difference in how one approaches the hobby.
Think about this in relation to the lovely tank you recently set up. I am willing to bet dollar to donuts when you were planing it you decided about the scape and the plants first and then picked fish that worked with it. I doubt you started out saying you wanted specific fish and then what plants and scape would be the best for them. Am I worng? Andplease do not misunderstand and take what I am say is that plant people don't care about fish. This is not the case at all.
Further I do not agree with your conclusions about tanks with lots of slower growing type plants. When one fills a tank with these types of plants there is an affect on the fish stocking levels that are possible. Reduce the potential fish load and you reduce the need for bacterial colonies in terms of their size. Consider what species of fish have the highest waste and ammonia output and see how many of them we find in heavily plants tanks. This entire thread really has to do with the fish even though it is about plants. the goal of cycling a tank with or without plants is to make it safe for the fish. So i find it impossible to separate the two. I had fewer and smaller fish in my high tech planted 50 gallon tank than I had in many smaller tanks with fewer or no plants.
So I am going to try yet again to explain it to you. Fill up a tank as you describe, you pick the plants to insure they are as far from high light and what you consider to be important silent cycle plants as you like. Just limit the selection to the sorts of plants the average fish keeper doing their first planted tank might select. And when you are all done and the plants are in the tank without any ferts added, and no supplemental co2 either, and let them settle in for 2 weeks, and then do this:
Dose sufficient ammonia to reach 2 ppm and then test in 24 hours. If you get 0/0, fully stock the tank. If you get some low level of ammonia and/or nitrite. You can likely do one more ammonia dose when things are near 0 and that will do the trick and you can fully stock. If you don't want to bother with more additions, you can do a gradual stocking and this will let the tank finish up on its own. You can likely fully stock, but play it safe and do 2/3-3/4 stocking. If this is a bit too much, the ammonia and nitrite levels should still be low enough as not to cause harm and they will zero out pretty fast.
If you test between .5 ppm and 1 ppm of ammonia, you have a ways to go and another ammonia dose is in order for sure- 2 ppm again. Or you can again opt not to add more ammonia and start stocking. But now you need to consider only doing a 1/2 stocking and then doing a couple of more additions over the next 4-6 weeks. Finally if you read ammonia at over 1 ppm, the plants and any bacteria are not really enough and more bacteria is certainly needed. So you will have to do more than one or two additions likely. The choice to add some fish right away and finish stocking over time or to wait until fully "cycled" and add them all in one go is up to the fish keeper.
All of this assumes one has done nothing else to get bacteria into the tank. But I wonder how many people will fill a tank heavily with slow or fast growing plants for their very first tank. they are likely working and their second or third tank. So the odds are they can do some seeding easily and head off this problem from day one. They are able to have a close to instantly cycled tank. And from the perspective of this thread, there is nothing to discuss.
My point is that sometimes an ammonia dose doesn't just serve to cycle a tank. It can also serve as a diagnostic test which gives us an idea of the capability of the tank to handle ammonia etc. This diagnostic test replaces a big fat book about every plant out there and how much ammonia it might consume or if ammonia can harm it. Nor do we get our plants with a label stating they contain X nitromonas, Y nitrospira etc. But none of this really matters. What matters is how fast the tank processes 2 ppm of ammonia.
Just as an fyi, my best guess is if this discussion were about a Walstad tank, the amount of ammonia I would suggest one dose and test with is about .5 ppm. The fish load in her tanks are so minimal the tanks are likely good to go for that fish load as soon as they are set up and planted. In the end, as far as I am concerned, this discussion is really not about the plants, it is about the fish and what it takes to insure they are safe.
Go to the Barr Report Forum and there are some 29 sub forums directly dealing with in tank issues. 28 are plante related and one is Inverts- not one are for discussing fish. Now head onto any site about fish. Check out theplantedtank.net. They have a single sub-forum for Fish and one for inverts. Whether its sites like this one or AquariaCentral, or its a more specialty type site, what you will see is many sub forums about fish and at least one and usually several about plants. This site has fw fish, sw fish, critters in both and then it has a decent planted tank section. Most specialty sites for species which don't eat plants, will have some space devoted to plants that work with such fish. To me this points up a major difference in how one approaches the hobby.
Think about this in relation to the lovely tank you recently set up. I am willing to bet dollar to donuts when you were planing it you decided about the scape and the plants first and then picked fish that worked with it. I doubt you started out saying you wanted specific fish and then what plants and scape would be the best for them. Am I worng? Andplease do not misunderstand and take what I am say is that plant people don't care about fish. This is not the case at all.