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Bearfan, did you just screen the gap or did you place the screen over the entire top? If you just screened the gap, how did you do it?

The glass is needed to catch the evaporation and allow to drop back down, watering the plants (those that are non-aquatic). I read somewhere to leave an inch or two open to prevent the fogging up of all the glass.

How should I set up the top of the rivertank? It seems that I would need a screen to make sure nothing escapes. However, I need a glass cover to keep moisture in. How would you set it up to use both a screen and a glass top?

Bearfan, I did a search before I posted this and couldn't find anything. I'll try again. Your pics look great! Breadman, by problematic I meant that largemouth bass can be difficult to train to take nonliving food. Also, a bass will eat any living thing that it can get into its mouth...

The thing I read said something about mixing epoxy with sand and it having the consistency of peanut butter. I assume the epoxy was white or light brown and that brown sand was used. I think silicon would be a bit bulky for that. I would rather use sand on walls and ledges as I believe that...

As long as the amphibians are small and there is a decent amount of water volume, I think I'll be fine with the waste and yes, I will perform water changes. I read somewhere that somebody had mixed sand with some sort of epoxy and spread over the inserts, yielding a much more natural look. Has...

The frogs will be small. Tree frogs and such. I've found a site or two which list good animals for a river tank. I'm not going to try to keep anything difficult or expensive. Pufferpunk, did you make your own river tanks or did you use a pre-made insert like that from River Ecosystems?

Thanks for the site, Menagerie. Regarding species, the fish will be small. Terrestrial creatures will likely include frogs, salamanders and such. Most if not all of the plants will be planted in the substrate (few if any aquatic plants). I'm really not trying to mimic a particular river...

My kids want me to make them a river tank. I plan to use the the Rivertank Ecosystem insert. I know it's not perfect, but easier than building everything myself. Does anybody have this type of setup or any advice? I've kept aquariums for years so am not looking for basic info., just info...

Madasafish, obviously the bigger the better. The bigger the sump, the more water volume you add, hence you dilute unwated nutrients. That being said, you really only need enough room to house the return pump and hold enough water to cover the intake of that pump; while leaving enough open area...

Actually, a sump is pretty simple. You just need an overflow and a pump (I might have left the pump out of my last post). After that, it can be as simple or as complicated as you want. After using sumps on the last few tanks and over the last several years, I don't think I would ever have a...

Add a small sump and the problem completely disappears. Basically, for the price of an overflow, a little pvc and/or tubing, a small tank or even a Rubbermaid container; you can have a sump. Not only can you put heaters and such in the sump, but you also increase your water volume...

LondonGman, check out these links: http://www.killifish.us/about.htm http://www.intellweb.com/gcka/livebearer1.htm Basically, Belonesox, guppies, mollies, etc. share the same order with killifishes (Cyprinodontidae). However, they are from different families. Killifishes are egg-laying...

Probably not likely that mollies would breed in this container. However, a pregnant female could be moved to give birth. I do hope the feeder guppies breed. I feed the fry "larvae" type food so they are fed. Guppies and mollies are natural food sources for Belonesox so I'm not that worried...

I'm keeping Belonesox Belizanus and am trying to keep them in food (all they eat is live fish). I bought a refugium (made for reef aquariums) that I plan to breed guppies in. Also, pregnant mollies could give birth in. The refugium hangs on the back of the main tank, takes water from the main...

I guess I'm looking for a short-term solution. Eventually, I will likely have to go with pressurized CO2. I guess the main reason I don't want to is because I had a nice dual stage Lifereef Ca reactor that I sold with my reef stuff. I could have thrown some bioballs in one of the reactors and...

I broke down and did some study and now have a much better understanding of pH and KH as it relates to dissolved CO2. Assuming there is a direct relationship as shown on the charts, the use of CO2 is merely a method to reduce pH while keeping KH constant (indirectly increasing dissolved CO2)...

Regarding the mixture Regarding the mixture: If you doubled the sugar, yeast and baking soda, would you get double the CO2?

Rex, the test kit is a RedSea. RedSea makes pretty decent test kits and the directions did mention carbonate hardness as a factor in CO2. I'll study a little more on this relationship, but if all other things are equal and CO2 increases with the DIY, I have to assume that it's working.

That's my plan, Talenzmeier. Maybe large alkalinity swings (alkalinity is same thing as carbonate hardness, just a different scale) could cause some variation, but I could rule that out by measuring alkalinity. To me, the time of day could be a big factor as CO2 should be lowest when the tank...

I've had many fish nibble, but I had two tomato clowns when I kept reef tanks that would try to rip you to pieces. These fish didn't nibble, they knocked the he!! out of you.

For the small amount you would be using, there is no reason not to get a quality salt. Personally, I use Instant Ocean in my brackish tank. I used IO for 7 years in reefkeeping. In nature, most brackish water is brackish due to its proximity to the ocean. Therefore, why not use a salt that...

Rex, you might be right. However, it doesn't cost anything. Also, I have a CO2 test kit that came with an iron test kit. Yesterday, after the lights had been on for about 8 hrs., I took a CO2 measurement. It came out to 10-12ppm. I figure that if I measure at the same time of day, I should...

Yea, I was thinking about cutting a slit in the sponge. That should keep the CO2 from escaping and keep the tubing from moving around.

I have a wet/dry, so no way to send direct to a filter. However, I could send to the return pump. Currently, there is a sponge over the intake. I guess I could remove and put the tubing very close to the intake/impellar. Any thoughts? Talenzmeier, were you stating that you also used the...