Hello. Greetings from Memphis, Tennesee. I'm just getting back into the aquarium hobby from about a decade away. I am new to Discus, but I understand that they are a somewhat demanding but very rewarding species. I like a good challenge and I like to do it right. Perhaps that is part of the enticement. I intially purchased a 125 gal long, but my wife and I both agreed that it did not really fit in our breakfest nook, so I purchased a used 75 gal. standard 48 x 21 x 18. I would greatly appriciate any suggestions on bio-load, substrate, plants, filtration, etc., etc., etc.,

I would like an Amazonian fish bio-type, low-tech show tank focusing on the Discus preferances, but will be cheating on the bio-type with the plants. I would prefer an easy, plants and not to mess with CO2 so that limits my plant choices. Here is what I was thinking:

75 gal. lightly-planted aquarium (only non-negotiable)
Temp: 82 F
PH: 6.9
O2 levels >8.0 mg/l
Hardness: 2 degrees (for plant growth)

5 Discus
8 Silver Hatchetfish
2 German Rams (mating pair)
12 Neon Tetras
3 Corydoras Sterbai (groundskeepers)
2-3 Otocinclus cats (for algae control)

Lower-maintanence Plants I'm considering:
Amazon Sword (Echinodorus bleheri) centerpiece
Cryptocoryne Beckettii
Crypt Wendtii (for accents)
Anubias Nana (forefront)
Lilaeopsis (forefront)
Dwarf Lily (redish accents)
Amazon Frogbit (carefully monitored, but cover for hatchetfish)

Fluval 305 Canister Filter (260 Gph)
Tetra Whisper EX70
Emperer 400 Bio-Wheel

Two HOB filters might be a bit of overkill, but I got them cheap, so I figured I might as well use them. The Emperer 400 is dying, so I will probally need to replace it soon. Suggestions? Maybe in time I can upgrade to a bigger canister.

Heaters: Two Aquatop Quartz Glass Submersible Heater (300 Watts)

Substrate: Seachem Flourite (for plants) mixed with a small gravel substrate (more for aesthetic purposes)

Anyway, any suggestions on on bio-load, tankmates, substrate, plants, filtration, etc. would be greatly appricated. Thank you for reading!

Alot of the information I gathered was from the following article: http://aquaticconcepts.thekrib.com/A...PAM_Discus.htm