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Anonymous

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Here is the nature of my crime

Without proper research, and relying on a teen something Petco employee, I endevored to start a small marine tank (10 gallon). Here is my setup

10 gallon Marineland tank
2 energy saver florescent bulbs (like you put in normal lite sockets)
1 penguin biowheel powerfilter
1 powerhead for water movement
1 Airstone and air pump
1 submersible heater
0 protine skimmer (new to me)
1 hydromiter
1 master test kit (PH, Amonia, Nitrate, Nitrite)
20 lbs Live Sand
2 damselfish


First off I had no Idea about live rock, and found out about live sand at the time of purchace (that should have told me something) Also, I had no Idea and was not informed of the importance of a protine skimmer to a marine environment. And finally, Starter fish are prety normal for freshwater environments, but far more inhuman in a marine environment (in retrospect)

I mixed up my salt, filled the tank, added the live sand with a couple of ceramic and stone decorations intended for aquarium. when the temperature reached 79 degrees (my understanding is that it should be between 78 - 82) and specific gravity was approximately 1.023 I headed back to the LFS and bought my damsels and food.

I did look up the fish before I ran out and bought them. They were suposed to be to hardy species with mild demeanors a Lemon Damselfish and a yellow-tail Blue Damselfish. When I got them home and in the tank, they both emmediately began feeding somewhat aggresively, and I thought that this was good. The next day I noticed the Yellow-Tail hiding over by the power head and everytime he left his little corner the Lemon shooed him back. This on the otherhand was not good. Also, the "Lemon" had developed black spots at the base of its pectoral fins. These weren't suposed to be there....

I did a little research and found out that my Lemon is actually a Juvinile Cocoa and that the Juvies are "Highly Aggressive". Well Poo. I can't condem him just because I'm stupid. So I re-arranged the tank, and now the yellow has a home of his own that the Cocoa will leave him too.

The real kicker came about 1.5 weeks into the cycle, when the nitrites started to rocket. I got up (On a Saturday) and turned on the lites to a couple of miserable looking fish. they were panting and looked all washed out.

I sent my wife in a scurry to the LFS to pick up some salt and began to drain 75% of the water from the tank. I mixed the new salt with distilled water, since I have no purifying equipment, and warmed it to tank temperature (only 2 degrees diferent from the starting temp of the water) and siphoned it back into the tank. I fiugred syphoning it back would be more gentle than just dumping it.

By the end of the day, the fish were colorful and happy again, but the cocoa looked ever-so slightly pale. I continued to monitor the cocoa closely at feeding times, during water changes, and when testing water paramaters.

After a few days, when his color did not combe back as it should, I set up a 2.5 Gallon hospital tank for him and moved him there. I keep that water pristine by daily 75% water changes, with no substrate to hide detritus or junk and only one place to hide to make hime more comfy. He recovered there just fine.

The yellow-tail has had to bare the brunt of the tank cycle and has shown no further sign of distress. Nitrites are finally at 0 as of this morning, and some algea is starting to grow (I think this is a good sign, anyway it is not red) This evening I will move the cocoa and my new Blacktail to the 10 gallon tank which I am sure will cause another smaller cycle, but I should be able to handle it.

No other critters except for janitors will ever be added to this tank since I am sure it will not handle any more of a bio-load. This weekend I will also be adding a protien skimmer, and am considering adding live rock to help out the live sand and maybe (hopefully) get some macro-algea to grow and a couple of helpful stow-aways.

I have definitely learned how NOT to cycle a marine tank, and have inhaled as much information as I possibly can in the mean time (Like a beginner should NEVER start with a 10 gallon tank)

Hope my Horror Story is entertaining :oops: [/list]
 

krullulon

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if it's any consolation, your horror story is very minor for this hobby. :)

in fact, many people buy damsels *specifically* to kick-off a tank cycle. it's not a recommended way to go IMO, but people still do it. just know that your accident is done on-purpose by lots of folks.

hang in there!
 
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Anonymous

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My intention was never to torture my fish. I have kept FW tanks in the past and have cycled using live specimins but have never seen them react so adversely to the cycling process. From this point on I will never advocate cycling in this manner. Had I done my research as I should have then this would never have happened. I am glad all my fish survived, but the Cocoa ate most of my crabs. I guess he was hungry.

on another note. should I be seeing micro algea forming in the sand bed and on the glass now, or is there possibly a nutrient imbalance?

thanks in advance
 

Len

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rdo_welcome.gif


I really respect your respect for all life. Too often people buy damsels as disposable fish to cycle when there are (as you found out) much more humane and affordable ways to cycle. Just feed the tank a bit and it'll cycle without the need to stress fish.

I'm not sure what Cocoa fish is (too many common names in this hobby) but most damselfish get big and continue to be very aggressive. I would actually advise you trade/sell/give back at least one of your specimens to a good LFS. If you intend to try other fish in the future, a lot will not get along with any of your damsels in a 10 gallon; they are that terrioritial.

A protein skimmer will help you a great deal. It affords hobbyists a level of tolerance that is most useful. I recommend you make an investment in one. With that in place, I'd remove the Biowheel as it is really a filtration system better suited for freshwater then saltwater.

Some liverock will be a very good addition as well. It provides great shelter for all sorts of animals ranging from tiny amphipods to worms to fish. It is the basis of all modern reef aquariums. You will have to buy completely cured rock or cure it yourself. There is some good reading in the FAQs on the top of this forum (one of the first 2 or 3 threads). I recommend the reading to everyone :)

Algae at this stage is very normal. You'll see a procession of different algaes for up to a year. This is a hobby that requires great patience, so hang in there :P
 
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Anonymous

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Unfortunately Fishbase does not have a picture of a juvinile (imagine the same fish as lemon yellow with the black spots at the base of the pectoral fins) But here is the scientific name
Stegastes Variabilis

They are right about the juviniles being aggresively territorial. I tried to research passive species but was sold this one as a Lemon Damsel and it obviously was not
 

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Anonymous

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Here are the scientific names for the three fish

Chrysiptera parasema: Yellow-tailed Blue Damselfish

Stegastes Variabilis: Cocoa Damselfish

Dascyllus melanurus: Black-tail Dascyllus, Four-striped Damselfish

I have a 25 gallon tank that was just "Donated" too me, and since I am mooving in under a month the damsels will have a new home in about 2 to three. None of the fish are over 1.5 inches yet, so I figure they can probably wait for thier new home to cycle right.

Thanks for your help and advice. This seems like a friendly place
 

Len

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Ah, thanks. I'm familiar with that species. All three can be mean little buggers :P Fishbase is a godsend for fish lovers!
 
A

Anonymous

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Thanks for your help and advice. There is a good shop 2 cities north of me that sells fully cured live rock for $5.00 a lb (about $.50 more a pound than uncured). I am going to see about returning one of the fish to Petco as well (I should probably return the Cocoa since he causes the most havoc, but he is such a fighter...)

Well, When I do start my reef tank, I will be more conscientious from the start.

Thanks again for your help :D
 

fungia

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welcome alf! you are off to a good start, great philosphy, and this place has help me so much. if you are bored or want to waste some time read the libray, its got all sorts of goodies :D
 

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