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#1
07-26-2010, 08:12 PM
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I've had this debate with lots of people and what it really comes down to is: it depends.
Do you have a sump? Skimmer? Lots of live rock? Do you have a heavy bioload from corals? Are the fish you are planning on free swimming or bottom dwelling? How big do they get? Right now I am running my 40g without a sump (being rebuilt) with several colonies and I had 8 fish (most I gave away when I moved recently) BUT they were all mostly smaller species AND they were a mix of free swimming and bottom dwelling AND they are not agressive. So... it depends. As a rule of thumb I wouldn't go more than 0.5" of fish per gallon. 
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#2
07-26-2010, 08:14 PM
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In my 34g cube I have a bicolor blenny, 2 chromis, neon goby and a royal gramma. I'm done adding fish I think but I may add a bangaii cardinal as my last if I happen upon one.
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#3
07-26-2010, 09:16 PM
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thanks guys!!
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#5
07-27-2010, 11:33 AM
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as many have said it really depends on the fish.... I usually do 1 fish to 10g
I had about 6 fish to a 50g breeder 4 anthias 2 wrasses it all depends but fish definately need their own space even gobies I say stick with nano fish and watch out for the agressive species... If you add a dottyback, pygmy angel, six line wrasse or damsel it will really limit other fish as those species are somewhat aggressive and pick on the otherfish until they starve or ultimately jump out of the tank! these are some of the fish I would consider for a 29g.... red wheeler goby tail spot blennie long nose hawkfish purple firefish pearly jawfish (you will need a cover as these fish are jumpers) mandarin goby jans pipefish also a fire shrimp from experience I have had good ones with keeping all those together although adding aggressive fish can most times make all the other fish hide!
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Always looking for the next best coral... 90g starphire cube/400mhRadium20k/2 XHO/2x27w UV/2x39w T5/ 3 Trulumen led strips Last edited by tang daddy; 07-27-2010 at 11:35 AM.
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#6
07-29-2010, 11:02 PM
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In my 25g skimmerless but heavily planted tank, I have a yellowhead jawfish, black leopard wrasse, 3 yellow clown gobies and a Cassiopeia jellyfish. Shutting down tank as part of my summer reorganization project, but the fish are all healthy and the macro does a good job sucking up nutrients. I use C. prolifera for nutrient export.
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If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
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#7
07-30-2010, 06:13 AM
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There is no exact number of fish you can have. There are so many variables, plus you will want to add fish slow anyway. Avoid tang as they need more room to swim, go with smaller species. As you adding more fishes to your tank, watch for your nitrate level and how your current fishes are doing. If nitrate level is low and fishes are happy, then great you can add another one. If you nitrate is high and fishes are not happy then you know you are adding too much with your current system. Time for upgrade :-)
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