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Quote: Originally Posted by TheClemsonKid I audited a genetics class last year, and it was far and away the most interesting class I've ever taken. I'm going to take the next course level this fall if I can fit it in. To understand genetics is to understand the future of medicine... I have to...

Why is your pH so low? Seawater should be between 8 and 8.3. Could something have died in the tank? That will acidify the water, and raise nitrates as well.

On the bigger is better question - we started 39 years ago with a 55 gal. system, upgraded to a 110 about 20 years ago, and then upgraded again to a 220 last year. I'm presently planning how to propose to my wife that a 440 would be just perfect. Here's hoping! BTW: the only maintenance-free...

Spongey may have an idea there - maroon clowns can be very territorial and may be harassing new additions. Small juveniles (like the hippo) would be easily bullied, and have a poor survival record anyway in captivity. Are you offering nori to the herbivores?

Quote: Originally Posted by Flower I never heard of the shrimp to cycle method before I found this site, before then, a fish was the only way anyone knew, and that is what books recommend. I have been keeping marine fish for about 39 years, and until I found this site I had never heard of the...

It seems to me that the sequence in your original post should work well. Cell biology and genetics are split, which is a good thing. The two diversity courses (animal and plant) are together, which should make each one easier since they will cross-fertilize each other. If you have any...

I have the Eschopps 300 w/d, and I don't like it. The open area is too small, so that you can't get equipment into it. The area under the bioball chambers is cut off from the return area, so that there isn't sufficient room for long heaters in the sump. And, finally, the covers on the biomedia...

Many students find genetics to be challenging because of the math/statistics involved. Also, there is usually homework (working those math/statistics problems). Students taking ecology are frequently stunned to find out that it is a science, and not necessarily all about finding a tree to hug...

I am a biologist who holds all life precious...so please do not use a group of damsels to cycle your tank. It is needlessly cruel to the animals, who have to suffer gill burns from high ammonia levels during the cycle, and Tim the aquaria st, who has to suffer from damsels afterward. There are...

First off, validate your test kit. Take a sample to your lfs and have them test it. Why do you use cycle weekly? Once your tank is cycled, the system will have enough bacteria for the current load, assuming no deaths or new additions. Anyway, let's be sure your reading is correct before we go...

I didn't mean caulerpa, I meant to type chaetomorpha - much easier to manage.

Your tank is almost cycled - there is still the matter of the nitrites, which should fall soon, and then your tank is fully cycled. Then, add fish s-l-o-w-l-y. I know it is exciting, and all you want to do is see lots of fishy friends swimming in the tank, but the tank has to accommodate its...

In addition to good water quality practices (water changes, etc.): 1. Reduce your light cycle to 6-8 hours/day. In fact, leave the lights off for a few days, then start the shortened light cycle. 2. If you have a sump put some macroalgae (caulerpa is my fave) in it and give it plenty of light...

Did you cycle the tank? If not cycled the water would test as perfect simply due to the lack of sufficient time to accumulate the toxins normal to a new tank. Did you see the clown that is behaving strangely eat at the lfs? Clowns will swim in strange ways, but if it is not eating or is...

What size tank do you have?

I think jay0705 has the sequence reversed a bit. Ammonia is converted to nitrite in the presence of oxygen, and the resulting nitrite is then converted to nitrate. Finally, in the presence of very low oxygen (as might be found in the crevasses of live rock) the nitrate is converted into...

Although I agree with Bang Guy that you are probably OK, I would begin a series of water changes anyway. In this hobby it never hurts to be extra sure!

Losing an entire summer playing Wizardry, a text-only adventure game, on an Apple II.

Reply posted in Fish Discussion.

Adding so many new fish, turning off the skimmer and running a wet/dry filter are all probably contributing to the rapid build up of nitrates in your system. I would resume skimming and would add some chaetomorpha to the sump if you have one, or to the display (you can but it into a net to...