__CAV__

dovii and other fish - unless you have either a very big tank or one that is overstocked (so that one fish isn't constantly bullied) it's not going to work. @loftie - I hope you don't like those goes, cause they will be dinner for your divii sooner or later.

A quick search on the inter webs found me this - Severums Cichlids, this explains the few severum species. Whatever they are, they are nice fish, It's nice to see something other than the normal sevs we get

Odds are these are just Heros cf. efasciatus. Fish from different collection points quite often exhibit different colourations to others, rift lake cichlids like tropheus are a great example of this. These were my old sevs, these guys had a blue colourations when breeding And this was their fry

Simple truth is there is far more to them then that, the fact that most of those $20000 instruments are designed so that they meet IECEx standards so that they may be used in electrically hazardous areas ie. explosive atmospheres, underground mines and oil and gas fields. They are designed and manufactured with the smallest tolerances, if you damage a housing (even a scratch on its flame path) you negate the instruments Ex rating and may as well throw it out as it is no longer suitable for its use in a hazardous area. Before the instruments are even used they must also be certified by the revelant people too.

Araguaia were here, I had a colony a few years back, I got it to spawn a few times before they were sold to a mate who had them in a display. I don't know if they bred for him or what.

Unplug your heaters, and check your temps in a day or so, if its drop to around the ambient temp you know its the heaters that are providing the additional heat. At the moment there's no need to have your heater on, your tanks will be hot enough without one, so just unplug it until it starts to get cooler again. If your worried about your fish increase your surface agitation so the water can carry more oxygen - the hotter the temp the less oxygen the water can hold. As for the water in your tank being warmer than the ambient temp - water holds heat a lot better than air does, so it takes longer for water to cool than it does the air.

nice rostratus donny, do yours ever try hiding in the sand?

nice riffles.

2nd pic is a sailfish, only first Is a marlin

To counter the excess water movement you could put a T piece in both the inlet and outlet pipes then have a tap in between them. Then it's just a case of opening the tap til the flow is at a suitable level.