Shuffle fish between tanks? - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 03-23-2014, 05:53 PM Thread Starter
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Shuffle fish between tanks?

I have a low tech "jungle" 15 and two low tech Fluval Spec V tanks. Here is a link to two recent videos of two of the tanks. The other Fluval had a betta who was a couple years old, and died a couple weeks ago from what I think was a tumor. I will be re-doing that tank later today, swapping plain gravel for Eco-complete. The 15 is a bit overgrown in the video because I want to use cuttings of the stem plants when I redo the Spec. Not the best videos but you will get the idea of the tanks.
https://www.youtube.com/channel/UC0M...CtOAXCN441bwgQ
The three Endler hybrids are in with the betta because they kept harassing the CPDs, I guess thought they were female guppies. The other 3 Endlers just spar with each other and don't bother the other fish, so they are still in with the CPDs.
So, I have the following after about 2 years of having them…
4 CPD (thats all my local store had in when I got them)
5 Chili Rasbora and 2 Exclamation Point Rasbora
5 yellow Endler Hybrids, 1 black bar Endler - all males
2 cory cats - will stay in the 15
4 otos - in the 15 now
maybe 50? maybe more… Cherry red shrimp in the 15 and a few in the other tanks.
1 betta - he's only about a year old

The 15 is small for the cory cats. A neighbor was getting rid of his tank and they were the only two fish left and I said I would give them a home. So far, they seem happy enough.

I've been thinking of moving the CPD to one Spec, and the Rasbora to another.

That would put the betta in the 15 with the Corys, Otos and the majority of the shrimp. He's had shrimp in his tank for months and not hurt them. Once in a while there is a dead one, but I never see him "hunting" so I think the shrimp are dying of old age. He seems to be a very mellow betta. He does love eating tiny snails though. The betta that just died - no way for him - he attacked everything. Anyway, was thinking of putting the betta in the 15 so he would have more room. He is a very active betta, unlike the veil tail that just died. This one is always on the move, and I feel bad that he is in a Spec.

Not sure where to put the Endlers. I guess in the 15 with the betta. At least the three that he is in with now. The three that don't hassle the other fish could go in Specs with CPD or Chili if it would not be over crowded.

Only thing is, the 15 is at 77 now, and for a betta to be in there, it should be a bit warmer, I think. Not sure how cory and oto would like that. The betta tank now is at 80.

I am not sure if a Spec is enough room for the CPD. I have read that people do it, but is it fair to the fish? The rasboras don't swim around much, but the CPDs are all over the 15. It is possible the betta and the CPD would get along ok too… so maybe they could both be in the 15 but would CPD like it warmer than 77?

Then again, I could put all the guppies in one Spec, leave the Betta in one, and leave the CPD and Rasbora in the 15 with the corys and otos. I love the CPD and would like to get a few more, if the store ever gets more in when I am there.

Filter flow - the Specs have the flow set low, with a small sponge slightly slowing the outflow. However, the 15 has two Aquaclear 20 on it, set at medium, one on each end, so there is quite a bit of flow in it. The betta is a plakat, so hopeful that it would not be a problem for him, if I would decide to try him in there.

Any experienced small tank folks want to give me some advise on shuffling my fish around so that everyone is happy? Thanks!
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post #2 of 3 (permalink) Old 03-23-2014, 06:11 PM
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Well...

Plakat Betta sounds like a pretty nice Betta. I have also had mellow ones and more aggressive ones. Usually more aggressive only to other Bettas, though.
If he seems to want more room to swim around, sure, put him in the 15. If 77 degrees F is the right temp for the other fish the Betta ought to be fine. While they prefer "warm" water, this is usually said to people who are keeping them in unheated, room temperature tanks (about 70 degree water), so that "warmer" is a relative term.
You are right to question the optimum temperature for the other fish, though.

Endlers can be kept in ponds through the summer (here, SF bay area) but need to come in during the winter. So I suspect they have a much wider adaptability than they are given credit for. Cool room temperature or slightly warmer is just fine for them. A lot warmer might be a problem. I don't know about the hybrids, though. Probably not quite so cold.

You can research the various Rasboras and related fish at something like Fish Base. org to find out the original (wild) conditions they came from, but for the possible range the various aquarium sites are going to be better.

Most Cories tend to be somewhat cooler water fish, most being quite comfortable in the low to mid 70s, some down into the 60s, but few are tolerant of upper 70s. I would research Cories at Planet Catfish.

There is also the question of water parameters. I think all the fish you list are fine with moderately soft or softer water, except, perhaps the Guppy x Endler hybrids. I would do more research, but would tend to think slightly harder water might be better. Being a hybrid they might have inherited the softer water tolerance of Endlers or hatchery Guppies, or the hard water preference of wild Guppies.
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post #3 of 3 (permalink) Old 03-23-2014, 06:34 PM Thread Starter
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Parmeters….
I have very, very hard water. Well water takes 26 drops to get the API hardness kit to change (GH and KH). All three tanks are maintained the same way. I use well water cut 50/50 with RO water I buy at the local supermarket, and I add RO for evaporation between water changes.

So, I don't think it is going to matter which tank the fish are in for parameters. They should be the same…. except temperature. I can vary the temps on the tanks.

I've had a problem with the 15 with high nitrates - I think from over feeding. I've cut back to once a day and that has helped. I worry about the otos because I don't have algae that I can see any more. So I put algae wafers and so forth in for them. THey have no interest in blanched veggies.

That is another thing I was thinking about switching fish for… the betta is used to eating one pellet at a time from my fingers. So I would not be putting food at the top in the 15 for the CPD, Endler Chilies like I do now. Just sinking wafer for Cory and food for Otos. Might help the nitrates if I switch fish around. The guppies can find food by hunting and pecking, I think, or I could feed them every other day, or when I feed brine shimp or bloodworms to the betta.
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