Hello guest! Are you an Apistogramma enthusiast? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Apisto enthusiasts to meet online. Once you join you'll be able to post messages, upload pictures of your fish and tanks and have a great time with other Apisto enthusiasts. Sign up today!
Apistos are just as aggressive as Bolivian rams or Blue acaras, pound-for-pound probably more so. There isn't much of a co-relation between size and aggression in cichlids. If anything, it's inversely proportional, look at Shell-dwellers for example.
Severums and Uarus are very good tank-mates...
I have no idea what is in the API pillow but the phrase "Softener" implies exchanging Calcium for Sodium. To reduce TDS you need "mixed-bed" resin which exchanges Calcium for hydrogen and carbonates for hydroxide in equal amounts therefore forming water. You can recharge them but you have to...
It probably is fairly hard, worth testing GH and KH, or checking the Water company website. Do you get a lot of scaling in your kettle or shower head for example?
A. cacatuoides is probably the best Apisto for hardwater, I can't think of another I would recommend. Bolivian rams and Blue acaras...
Gerald is correct of course, I wasn't entirely explicit.
If all the TDS in your water was made up of sodium chloride how would you know if you only used a TDS meter? It would not be suitable.
In practice, the TDS in tapwater mostly comes from Calcium carbonate, so as long as you establish that...
pH isn't as important as conventionally thought, especially in softwater. GH is a measure of Calcium (and magnesium and other stuff) which is a rough measure of how much "stuff" is in the water. TDS is a measure of everything in the water, so Sodium, Calcium etc etc. What is important to the...
GH is only part of the story so it's good to know TDS if you have a meter. I honestly don't test for GH any more because using a TDS meter is quicker and cheaper. pH and KH are still important IMO for Hardwater species, and especially for keeping a healthy filtration system. IME it's easier for...
Personal taste will influence your choice but I think it's hard to beat a large shoal of Lemon tetras, you could combine them with Splashing Tetras or Hatchetfish.
Other choices include Bleeding heart, Diamond, Red-Eye and Cardinal tetras.
One or two big shoals will look better than a mish-mash...
In 65g, I'd personally be thinking of something larger. Festivums or Geophagus for example, no reason why you couldn't mix Apistos in with them. You could also consider Biotodoma, Biotoecus, Cleithracara, Crenicara, Dicrossus, Guianacara, Ivanacara, Krobia, and Taeniacara...and the Laetacara and...