Giant aquarium setup help - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 12-03-2011, 02:52 PM Thread Starter
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Giant aquarium setup help

Hello, me and my dad are getting a 75-200 gallon aquarium to put our clown knife, tinfoil barb, and 2 columbian sharks in. They are still pretty small and are currently in a 45 gallon tank. There is also a blue gourami, and bumblee catfish in the tank but they won't be moving to the larger tank. What size tank would be the best? Currently I feed them beefheart, bloodworms, pellets, and flakes. What should I feed them when they get larger? I know feeder fish could infect your fish but thats what most people feed theirs. What filter would work well? Also we may want to add some more tankmates. Would an oscar work? Also what are some other good tankmates? Thank You!
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post #2 of 4 Old 12-03-2011, 06:37 PM
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Clown Knives get very large. I would get at least a 6 ft x 24" width tank so something like a 180 gallon with a canister filter such as a Fluval FX5.

Also, the Columbian Shark needs brackish water so not a good fit with the other fish

150 Gallon - Mostly American Cichlids
135 Gallon - Angelfish Community
75 Gallon - Odd couple (Polleni/Angelfish)
55 Gallon - African tank
20 Gallon Long - QT
10 Gallon - Empty
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post #3 of 4 Old 12-04-2011, 11:41 AM Thread Starter
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Thank you, but I know the size of the clown knife. He is the main reson I am getting a larger tank. I got him from the pet store because he was overstocked with at least 10 other larger knives, and about 5 red tailed catfish. They were all crammed together in a 45 gallon tank. Alot had deseases and the water was really bad and cloudy. There was no hiding spots and the fish were fighting. So I got one of the smallest ones. I don't think any animal deserves to live in that condition. Me and my dad do many water changes because they are such dirty fish. I have already lost a pair of columbian sharks most likely because of the water not being brackish. I have some salt in the tank but not alot because the knife fish is scaleless and can't salt hurt him? I also heard that the sharks have to be in full saltwater when they get older, is that true? Also what other fish could I eventually add? But for now everyone seems to be doing fine. Thank you for your help I appreciate it!
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post #4 of 4 Old 12-08-2011, 06:44 PM
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While buying a larger tank is a good step, it does not solve all the issues. You have fish that really are not compatible. Knifefish need quiet and dark, being mainly nocturnal. Tinfoil Barb need a group of 6 to prevent trouble, and attaining 14 inches they need a 200+ gallon tank, and they are quite active and need more water current. You can read more in the profile, click the shaded name.

Neither the knifefish nor the Tinfoils should be exposed to salt. They are soft water fish.

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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