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post #11 of 13 Old 07-12-2011, 09:26 PM Thread Starter
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I have a Nymphaea rubra in my tank, which occasionally sends up small lily pads. Normally I just cut them off at the base of the plant so that more submerged leaves are formed instead. If i allow the lily pads to grow, will these be considered "floating plants" and therefor be beneficial to my fish?
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post #12 of 13 Old 07-12-2011, 09:32 PM
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I have a Nymphaea rubra in my tank, which occasionally sends up small lily pads. Normally I just cut them off at the base of the plant so that more submerged leaves are formed instead. If i allow the lily pads to grow, will these be considered "floating plants" and therefor be beneficial to my fish?
Yes. Leaves at the surface have the advantage of access to more CO2 in the air than is in the water. They are also closer to the light. Provided the plant is getting sufficient nutrients via the roots in the substrate, the "additional" CO2 and more intense light will mean faster growth, relatively speaking, and that uses more nutrients.

This occurs even more with true floating plants whose roots are in the water where there is more ammonium.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #13 of 13 Old 07-13-2011, 12:56 AM
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I'm glad I'm not the only one who has had trouble with Emperors. I've never had them until this batch. And it certainly was not either space or number in the group, as I had more than 15 and in my 115g tank. All seemed OK until one day I noticed that all the fish in the tank were on the right-hand side. On the left were 3 male Emperors "holding court". I sat and noticed that any time another fish started swimming toward the left side, one of the Emperor would immediately charge it. sometimes it only took the emperor turning to "look" in the direction that sent the other fish back in the plants. This went on for several days, until finally I realized it was not some temporary issue, and out came the Emperors.

I put them in a spare 30g for a spell, then tried them in the 90g with different fish. Fine for a couple weeks, then it started again. This time all the other fish were crowded together in the upper left corner, and the Emperors controlled the rest of the tank; now and then they would charge into the other fish group, singling out this or that fish for a brief chase. After a couple days, they came out of there. Within minutes, the other fish began swimming around, displaying, even the rasbora spawned. Happy at getting rid of their bullies.

This is highly stressful to fish, even if no physical contact occurs (none did that I saw, just threats).
I now have the Emperors in a spare 30g, wondering what to do with them. They are actually taking this out on each other now, but I can hardly separate them into individual tanks. Probably have to destroy them, that tank is my QT for new fish and will likely be needed before long.
Yes, I too am trying to decide what to do with the group I have. I have a spare 29 gal but will need this for pleco fry if things work out, so Emperor's will prolly go to local fish store who accept's fish from me in exchange for store credit.
The guy doesn't accept fish from very many, but I have known him since high school and he knows the level of care I try to provide so placing the emperor's in his tank(s) is not much of a concern.
Is a shame really, for I like the Emperor's and they are not offered all that frequently. I just don't think they are a good fit with smaller less active fishes.

The most important medication in your fish medicine cabinet is.. Clean water.
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