I have a mixed Malawi/Tang tank of 500lt and run a 404 Fluval and a CristiProfi500 no problems, lots of water flow..
Where in the country are you? I have some Malawi fish you can have
Went to Westgate Mc D's tonight ,ordered two Big mac combo,s got home and saw we had MINI Mac,s .. usual crap on phone from them afterwards will avoid in the future! Should have gone to Burger Fuel THEY ARE THE BEST Staff, Taste , shop, everything!
Be wary of things like "Cornice Bond" , "TradeSet 20, 45 , 90 "etc. They maynot be straight Plaster of Paris, but have additives to make mixture cure faster, this might harm fish.
White Cloud Mountain Minnows . Breed in cold or warm water, don't eat their fry (much), large pH range,interesting spawning, can even spawn with frogs in the frog tank (about 5lt of shallow water!) easy to sell/pass on young, almost perfect really IMO
Use single sided razor blades, They are cheap. Replace often., and if you keep surface wet it shouldn't scratch. "Blackboard" paint will not grip onto glass very well, It maybe PA10 type of product which will be harder to remove, but elbow grease will work wonders. Good luck. (good job while you watch/listen to the rugby tonight! LOL)
If you get a container from the Warehouse (or where ever) DO NOT get the top one, I did when we had a mad , late night panic over a leaking/broken 500lt tank. I grabbed the first couple of 100 lt plastic bins. they must have have sprayed the shelves with something , because even after hosing and cleaning out the new bins one killed almost all the fish in it, and contaminated the fluval404 filter! Lesson learnt for me.
I remember Waitete Bay from over thirty years ago, really nice! There was somewhere near called "gemstone bay" I snorkled for hours. Lots of petrified wood rounded and polished in the water. Memories are great. Thanks for the blast from the past Barrie.
I had a small group of Flying Fox (Epalzeoryhnchus kallopterus ? ) to control black beard(hate it ) algea in a comunity tank, They may eat green stuff too and would be able to handle convicts. They may eat eggs or fry though.