Rainbow Sharks - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 16 Old 12-04-2008, 07:22 PM Thread Starter
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Rainbow Sharks

Hello,
I have one rainbow shark in my tank and I am curious why I don't see him that much. He seems to hide in a crevice I have in my driftwood. He is in there a lot. Every once in a while he comes out and swims around the tank real fast then goes right back in. Does he need some more friends or is this the nature of a rainbow shark?

Thanks!

29 Gallon Freshwater Tank
Fully Planted
1 Rainbow Shark, 2 Assorted Platies, 1 Gold Lyretail Molly, 1 Black Molly, 1 Rosy Barb, 7 Neon Tetras, 6 Serpae Tetras, 3 Large Snails, Several ghost shrimp.

30 Gallon Long Saltwater Tank
Under Construction. Nova Extreme Pro T5 HO Lights, 6-39 Watt Bulbs,
G1X Protein Skimmer with 3500 Sedra Power head. 75 lbs. Live Rock, Sinularia, Zoanthids, Finger Leather, 45 Blue Legged Hermit Crabs
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post #2 of 16 Old 12-04-2008, 09:44 PM
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I would say it's his nature. Give it some time for it to adjust to the tank and he'll eventually start coming out more. Definitely do not get him any "friends"; rainbow sharks are highly territorial and will not take kindly to other territorial bottom dwellers, especially other rainbow sharks.

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post #3 of 16 Old 12-04-2008, 09:48 PM Thread Starter
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awesome, i appreciate it! I have had him for a couple months, how long would you say it would be before he is adjusted enough to come out more?

29 Gallon Freshwater Tank
Fully Planted
1 Rainbow Shark, 2 Assorted Platies, 1 Gold Lyretail Molly, 1 Black Molly, 1 Rosy Barb, 7 Neon Tetras, 6 Serpae Tetras, 3 Large Snails, Several ghost shrimp.

30 Gallon Long Saltwater Tank
Under Construction. Nova Extreme Pro T5 HO Lights, 6-39 Watt Bulbs,
G1X Protein Skimmer with 3500 Sedra Power head. 75 lbs. Live Rock, Sinularia, Zoanthids, Finger Leather, 45 Blue Legged Hermit Crabs
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post #4 of 16 Old 12-04-2008, 10:48 PM
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If he's been in there for that long, you could also try adding more hiding places and plants to the tank. The more hiding places there are, the more secure the fish will feel so it might come out more.

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post #5 of 16 Old 12-04-2008, 10:50 PM Thread Starter
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Cool, I actually ordered some plants and they should be coming in tomorrow. I am thinking about building a cave out of some rocks for him to hide as well.

Thanks for the help Batman

29 Gallon Freshwater Tank
Fully Planted
1 Rainbow Shark, 2 Assorted Platies, 1 Gold Lyretail Molly, 1 Black Molly, 1 Rosy Barb, 7 Neon Tetras, 6 Serpae Tetras, 3 Large Snails, Several ghost shrimp.

30 Gallon Long Saltwater Tank
Under Construction. Nova Extreme Pro T5 HO Lights, 6-39 Watt Bulbs,
G1X Protein Skimmer with 3500 Sedra Power head. 75 lbs. Live Rock, Sinularia, Zoanthids, Finger Leather, 45 Blue Legged Hermit Crabs
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post #6 of 16 Old 12-04-2008, 10:52 PM
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I've also noticed that sharks tend to be more active in the evening and night.

Just a thought.
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post #7 of 16 Old 12-04-2008, 10:57 PM Thread Starter
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Yeah I have noticed that as well. He comes out more when the light is off. Pretty much the only time I really see him during the day is if a fish or shrimp ventures into his little cave he comes chasing them out and goes right back in.

29 Gallon Freshwater Tank
Fully Planted
1 Rainbow Shark, 2 Assorted Platies, 1 Gold Lyretail Molly, 1 Black Molly, 1 Rosy Barb, 7 Neon Tetras, 6 Serpae Tetras, 3 Large Snails, Several ghost shrimp.

30 Gallon Long Saltwater Tank
Under Construction. Nova Extreme Pro T5 HO Lights, 6-39 Watt Bulbs,
G1X Protein Skimmer with 3500 Sedra Power head. 75 lbs. Live Rock, Sinularia, Zoanthids, Finger Leather, 45 Blue Legged Hermit Crabs
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post #8 of 16 Old 12-05-2008, 12:16 AM
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You might want to consider adding some LED moonlights. I added them to my tank and voila! Out comes the pictus, who I never used to see at all. He has too large of a driftwood cave that he's completely secure in that he simply won't leave, unless a curious loach thinks he's going to "play" around the entrance. Then the pictus does the dart & chase, then right back into the cave, same as your shark! The "moonlight" draws him out so I'm able to enjoy watching him *cruise* the tank.

If you don't stand up for something you'll fall for anything...

Last edited by aunt kymmie; 12-05-2008 at 12:18 AM.
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post #9 of 16 Old 12-05-2008, 02:48 PM Thread Starter
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sounds like a cool idea. I will look into adding a moonlight. Do I just add a whole fixture to my tank with a moonlight bulb in it??

29 Gallon Freshwater Tank
Fully Planted
1 Rainbow Shark, 2 Assorted Platies, 1 Gold Lyretail Molly, 1 Black Molly, 1 Rosy Barb, 7 Neon Tetras, 6 Serpae Tetras, 3 Large Snails, Several ghost shrimp.

30 Gallon Long Saltwater Tank
Under Construction. Nova Extreme Pro T5 HO Lights, 6-39 Watt Bulbs,
G1X Protein Skimmer with 3500 Sedra Power head. 75 lbs. Live Rock, Sinularia, Zoanthids, Finger Leather, 45 Blue Legged Hermit Crabs
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post #10 of 16 Old 12-05-2008, 05:40 PM
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iamntbatman gave me the link for my moonlight strip. It's always nice when someone else does the research for you! My tank is 70" across so fitting a strip across the top, in addition to my regular lighting, was pretty simple. I don't know the dimensions of your tank or how much room you have on top of it??? They have all types of options when it comes to moonlight LED fixtures so finding something that will work in addition to what you already have should be relatively easy. I found that they weren't all that expensive either, which was a plus!!

If you don't stand up for something you'll fall for anything...
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