Stocking...again.....

Scott Fellman

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Man, I hope I'm not insulting your intelligence with this post about a so-called "beginner's topic."

I am writing today about what seems to be a pretty obvious concept- stocking you aquarium. I'm looking at this seemingly worn-out topic yet again simply because in the past week, I've dealt with two different reefers who had major issues with their aquariums because of what were really "basic" stocking mistakes- which could have been easily avoided. Both were what I'd consider pretty advanced hobbyists, too!

I've screwed up enough times to recognize the signs that the "bridge ahead is washed out" and I need to apply the brakes.

Of course, I've went full speed ahead into that washed out bridge before, with predictable results... Perhaps we can all use another "refresher "here! I'll throw in my two cents worth.

You ever hear that expression about "stocking an aquarium requires compromise?"

Yeah, it goes something like that. I mean, the main idea is that you can't have everything that you want in one tank. Well, duh...we get that.

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You need to stock your aquarium based on the needs of the animals, the ability of you and your system to handle them, and the physical size of the system, the types of fishes, etc. We all know that if your intent is to keep big, predatory Lionfish and Groupers, you're unlikely to be keeping small Cirrhilabrus species in the same tank.

You can't keep predator and prey together without the excpected unfortunate results. Again, we get that.

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However, when "the rubber hits the road", and it's time to actually put this theory into practice, it's not always quite so simple. Consider this:

I'm doing a 50 gallon South Pacific-themed tank in my home office.

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Right off the bat, the loose commitment to an "Indo-Pacific theme", regardless of how "authentically biopic" I want to make it, whittles down my choices of fish significantly. No Grammas, Flower Anemones, Hypoplectrus (Hamlets), or Lipoproma in there! Nope. But that's pretty obvious, right?



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I like small fishes. Specifically, the Assessors and Gobies and Blennies, which, although is roughly a few hundred species as far as the scientific world is concerned, really boils down to several dozen commercially available species at any given time.

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Now, most of us regard Gobies and Blennies as small, peaceful little fish- which by and large, they are. However, they still have some habits which can make choosing the right combination a make or break event for a new tank.

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For example, I love Gobies. Most all are pretty darned peaceful, keeping their squabbles to themselves. If you keep them in a group of the same species, as I have, you have little issues with them. However, when you combine them with some of the more active little guys, like Canary Blennies, Basslets, and the like, you can have some difficulty getting your Gobies to settle in and feel comfortable enough eating.



Yeah, right? Have you ever really observed a group of "peaceful" Halichoeres wrasses, Pseudochromis, or the like feeding? They "spaz out", and go into a frenzy. Yeah, these little monsters are pretty darned aggressive feeders, meaning that "chill" fishes like Assessors will have to up their game a bit if they want to get their fare share at feeding time. Some of the more docile species might simply not adjust to the "pace" that these fishes lay down.

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I always laugh when I hear some of the smaller Blennies recommended as "dither" fishes, to bring out allegedly "shy" Angels and such into feeding and socializing. Really? Would YOU jump into the middle of a frenzy at feeding time in a tank with Blennies? I mean, it's like those videos you see of discount stores having $50 plasma TV's on "Black Friday"- you've seen the videos- you know what happens when the doors open at midnight...

Yeah.

And of course, even within the Blennies, there are some that are not so nice. For example, the above-mentioned Tailspot is a little S.O.B. to other Blennies. They see little fishes, some with attractively-flowing fins- and can't wait to nip. Yup, they are not the nicest fishes around, despite their small size and relatively passive behavior as compared to say, a Pseudochromis or something.

I'm only using Blennies and Gobies in these examples because they are the fishes I'm working with at the moment, but the same theories apply to virtually any community. As fans of Fairy Wrasses know all too well, stocking is a very important and critical part of the process, and involves taking into consideration multiple factors to assure success.

You need to take these "compromises" into consideration at almost every level of the stocking process, in my opinion. To overlook a fish's reputation for having not-so-nice manners in a"community tank" is putting everyone at risk. Not good.

So what is a hobbyist to do? Well, you need to really to consider a lot more factors in the stocking process than just "will this one fit into the other's mouth?"

You need to look at the behavior of fishes, regardless of size, right? It's pretty important to take into account the temperament of the fish on any given day. Just because a fish is "relatively peaceful doesn't necessarily mean it will work in your community tank, right? I mean, "peaceful" relative to what?

It is a seemingly simple, even obvious analysis, but I see many issues that aquarists have with their tanks- even very advanced hobbyists- which could have been avoided if only a bit more time were spent on the simple "multi-level suitability analysis" of each potential inhabitant. We often are involved in the other minutiae when setting up a new system, so that even the most seemingly "obvious" thing are occasionally overlooked!

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(Yo, M.P....remember that pic?)

In the end, the goal of virtually every level-headed reef aquarist is a harmonious tank full of beautiful fishes and corals. The best way to achieve this is to just keep things as basic and simple as possible. Research the nuances of each fish from a variety of levels before making you stocking decisions.

I think you already know this...but I can't help but bring it up one more time!

Have fun. Be aware. Enjoy yourself.

And stay wet!

Scott Fellman
 

LionFish47

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BTW, I have a sailfin tang and 4 green reef chromis in my tank right now, I was wondering how well two designer clowns of about an inch in length would do in there? I have an anemonea they should hopefully host with soon, but they're the smallest clowns I've ever seen

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Luvs501s

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Can I hear a "Hoo Hah" for chill tanks? I don't want to see anyone chased or cowed and I kinda spread the food around so I don't have that Bargain Basement rush to get food. I try to keep an appropriate number of species and watch very carefully to see that they have their "space" in the tank. All the other mentions are pretty much "Goes without saying". I try to research what I want and bite the bullet if I can't have a particular fish. There's always something similar that works out just fine.
 
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Scott Fellman

Scott Fellman

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Can I hear a "Hoo Hah" for chill tanks? I don't want to see anyone chased or cowed and I kinda spread the food around so I don't have that Bargain Basement rush to get food. I try to keep an appropriate number of species and watch very carefully to see that they have their "space" in the tank. All the other mentions are pretty much "Goes without saying". I try to research what I want and bite the bullet if I can't have a particular fish. There's always something similar that works out just fine.
LOVE you thinking on this..."Compromise"- a crazy, not-often-spoken word in the fish world. But it does work!
 
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Scott Fellman

Scott Fellman

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BTW, I have a sailfin tang and 4 green reef chromis in my tank right now, I was wondering how well two designer clowns of about an inch in length would do in there? I have an anemonea they should hopefully host with soon, but they're the smallest clowns I've ever seen

image.jpeg
So hard to make general conclusions here...I mean, fishes are like people, and a certain "peaceful" fish could be a terror, and vice-versa. That being said, The fishes you're talking about inhabit different "strata" in the aquarium, and that can be a plus. Of course, so much depends upon the size of the tank, and multiple other factors. My best recommendation at this point is to observe carefully and be prepared to "airlift" the little guys to safety if you find that there is some bullying going on. Anyone else have some thoughts/advice?

-Scott
 

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